Mysterious tunnels built by King Ferdinand II of Bourbon snake underground in central Naples. These intriguing passageways were designed as an escape route for the king in 1853 before serving as a military hospital and bomb shelter in WWII and finally as a warehouse for impounded vehicles in the 1940s, 1950s and 1960s. The dusty aqueducts were recently rediscovered and now visitors can take a spell-binding tour of the tunnels encountering abandoned vintage motorbikes and cars along the way.
Is this China’s most luxurious hotel? The new £415m seven-star venue that has jade floors, a 7,750-square-foot ballroom and four nightclubs
The Wanda Reign on the Bund hotel in Shanghai, China, took more than three years to build. The 20-storey building combines art deco style and early 20th century Chinese design. Pictured clockwise from top left: One of the four restaurants, a private karaoke room, a spa suite and the lobby. Inset: The hotel's exterior.
Railroad to nowhere: Fascinating pictures reveal an abandoned Soviet JET TRAIN that was once capable of travelling at 160mph
These fascinating pictures show a Soviet ‘turbojet railcar’, which was built in the 1970s and proved capable of reaching an astonishing 160mph, thanks to the huge jet engines on its roof. What made this concept impractical was the extremely high fuel consumption. And so this power car was pushed into a siding and left to rot.
Off-limits to tourists: From Bolivia's 'death road' to ancient villages in Yemen, a peek inside beautiful places travellers DON'T visit
While much of the world is the modern traveller's oyster, there are regions you can't roam freely. Whether that be the mysterious lands of North Korea or Syria, currently in the throes of war. But in many of these places, extraordinary beauty lurks behind the tightly-drawn curtains, along with the promise that some day they'll be free to explore again. With a few exceptions, all the magnificent destinations showcased here fall under the FOC's red zone - areas where 'all travel' is expressly advised against. Said notable exceptions include Norway's Domesday Vault (inset), a heavily guarded cavern built under the Arctic snow which contains seeds from almost every nation on earth to be retrieved in the case of an global catastrophe. Good luck getting a peek in there. Pictured clockwise from top left: Congo's beautiful region of Likouala, Bolivia's 'Death Road', the Karakoram highway that links China with Pakistan and Yemen.
A replica suicide vest, skull-adorned throwing knives and a gas mask decorated with bullets: The incredible items people try to take on planes revealed
From an ornate cane concealing a sword to a five-bladed flogger, the Transportation Security Administration has shared photos of the shocking items that travellers across the US have tried to take on planes. Pictured left are skull-adorned throwing knives seized from a carry-on bag at Chicago O'Hare Airport, right is a replica suicide vest discovered at Virginia's Richmond Airport and inset is a gas mask confiscated at Miami International Airport because it features replica bullets.
The color of money! From ancient kings to glimmering bird holograms, the most beautiful banknotes in the world revealed
There's a certain small pleasure to be had in examining the first bank note you are handed in a foreign country. Some of them are so beautifully obscure, perhaps you've bought them home with you and kept them as little paper souvenirs, to accumulate dust as they lie scattered in random dusty drawers. Here, MailOnline Travel has hunted out some of the most colourful and exotic notes that are - or were once - in distribution around the world.
Stunning 'street art' illuminates the Amazon rainforest with the faces of a tribe threatened by deforestation
Philippe Echaroux, who describes himself as an activist artist, has illuminated the Amazon with light projections of the faces of the Surui people. By illustrating the unflinching faces of the people whose lives are directly affected, the artist hoped to remind the international community of the ongoing environmental threat of deforestation and illegal logging in the region.
'Mouldy sun beds, slime in the pool and closed restaurants': Father slams 'shambolic' all-inclusive family hotel for Fawlty Towers-style horrors
Nurse Tim Sheppard booked a week's trip to the Aquis Sandy Beach Resort in Corfu for the half term holiday with his partner Hayley Palk (inset, with Tim), and his two children Eloise, seven, and Amber, five. He described the resort as the hotel from hell - with most of the nine bars and restaurants closed. The family claim that their trip featured mouldy sun beds (bottom right); green slime in the swimming pool; broken drains; a litter strewn beach (top right and bottom left); rubbish stacked in corridors; a cracked and splintered entertainment stage; and dirty water at the buffet. Mr Sheppard, from Exeter, has revealed horror pictures of his £2,200 trip - booked through Thomas Cook.
Is this the best job in aviation? Meet the man who travels the world on delivery flights of new planes drinking champagne as he goes and trying EVERY seat in the cabin
Aviation expert Alex Macheras,19,pictured, travels the world on inaugural flights. Enjoying cockpit views, empty cabins and champagne-filled VIP parties while testing these new jets, the Londoner reveals the perks of the job to MailOnline Travel. This year he has flown on short haul deliveries to Helsinki, the Swiss Alps and Frankfurt on Europe's first A320neo but more often than not can be found on long haul flights to Thailand and Uganda among other destinations, trialling the Airbus A350.
Now THAT’S mist-ifying: Incredible footage shows planes landing at London’s Gatwick airport despite dense fog
According to the filmmaker visibility was so poor at the London airport that some planes were actually forced to circle before landing or divert to another airport. The video has been viewed over 25,000 times online, with many impressed by the filming and the skill of the pilots. According to Plane Clever, by Christopher Bartlett, modern airliners can ‘land virtually automatically in fog’, but the air traffic controllers will space the aircraft out more as they land and depart.
An exploding volcano, a nosy killer whale and a very brave skier: The new photo contest that is setting EXTREMELY high standards
The Siena International Photo Awards, held at the Teatro dei Rozzi on Sunday, revealed winners across 11 categories in total. Pictured main is Mount Etna erupting in Italy, winner of the Nature category, bottom left a killer whale drawn to a fishing boat in Tromsø, Norway, winner of the Wildlife category and bottom right a skier leaps from a 32-foot cliff, also shot in Tromso, Norway, which won the Sport category.
Why the hotel of the future could be an eco-pod robot 'jellyfish' with 'tentacles' that catch trash and clean polluted water
Conceived by Janine Hung, a graduate architect based in the Philippines, the floating lodges (pictured) boast kitchen and bathroom-equipped living quarters and gardens in their underbelly that can raise fish and grow vegetables. Beneath the surface, the solar-powered structure has 'tentacles' (inset) which capture and collect rubbish, and filter polluted water - either storing it for human use or returning it to its source clean.
Pictured: The incredible submerged plaza you have to walk into the sea to reach (no wonder the design is based on submarines)
A futuristic-looking plaza will be transforming the Florida waterfront from 2018 and to reach it, you have to walk into the sea. But fortunately, you won't get wet as the whole complex will be set on a floating base that's inspired by the technology used on submarines. Currie Park (main) will occupy a 19-hectare vacant area off the coast of Lake Worth Lagoon in West Palm Beach. As well as featuring restaurants (right inset) and shopping areas (left inset), the huge complex will also have events at the auditorium and a circular pool that overlooks the sea.
A runway built on ice, a landing strip on the edge of a cliff and a private hangar in an A-Lister's back garden: The world's most bizarre airports revealed
Want a journey that really is more interesting than the destination? Then you might want to fly to one of these bizarre airports. In the North Pole there's an airstrip built on floating ice and in South Africa a runway with a 2,000ft drop at the end (inset). And if movie star John Travolta invites you to his Florida property, you've got the option of taking a private jet right to his front door (bottom left). Other unique airports revealed by MailOnline Travel include an airstrip built 2,221ft above sea level in a mountainous region of China (top left), a desert airport built once a year for the Burning Man Festival (top right) and a runway built entirely on ice in Canada (bottom right).
Tat's amazing! Globetrotter tours the world snapping cheap souvenirs against their grand real-life landmarks
Michael Hughes, who grew up in London, has been touring the world and taking these whimsical photos since 1999, photographing souvenir objects in front of their real-life counterparts. Pictured clockwise from top left: The Leaning Tower of Pisa in Italy; the Houses of Parliament in London; The Eiffel Tower in Paris; the Statue of Liberty in New York; and (inset) the ancient pyramids in Cairo, Egypt.
One of the best things about Maho Beach, for many, on the Caribbean island of St Maarten-St Martin was seeing KLM’s 747s roar overhead to the airport nearby. But the last ever hair-raising landing by a jumbo belonging to the carrier was made on Friday. Many aviation fans took to Twitter to mourn the end of the era. User Maliniak said: 'Maho Beach without [the] KLM 747 will never be the same.' Kazi Ahmed wrote: 'Avgeek or not the magnificent KLM 747 at St Maarten airport was a sight to see. Sad it has been retired.' Maho Beach is one of the world’s best plane-spotting locations, with thousands of brave holidaymakers flocking there every day to stand directly under the flight path as passenger jets buzz overhead.
Sixth-century steps carved into a remote rocky island and tire tracks in a vast desert: New photo book captures the most wild and beautiful places in the world
A breathtaking new book by National Geographic showcases stunning photographs highlighting 50 of the Earth's most pristine, scenic places, including the breathtaking Skellig Islands off the coast of Ireland (main), Canyonlands National Park in Utah (bottom left) and a volcanic crater lake in Iceland (bottom right). MailOnline Travel has assembled a selection of some of the most striking landscapes featured in the book named, appropriately, Wild Beautiful Places.
'Dad of the year' hands out sweets to plane passengers on Halloween to give to his three-year-old daughter so she wouldn't miss trick-or-treating
An American dad's actions have gone viral after he was spotted handing out sweets to fellow passengers on a plane so his three-year-old wouldn't go without the trick-or-treating experience on Halloween. He encouraged the fliers - if willing - to hand the treats he gave them to his little girl when she went around the airplane on the traditional all Hallows walkabout on the Boston to San Francisco flight.
Fancy sailing a superyacht from a Bond film or staying in a 'yellow submarine' ? The world's best 'Airbnb' boat deals revealed
The saying goes that 'a boat is a hole in the water in which you pour money' and many boat owners frequently bemoan the lack of use their vessel gets. However the increase in peer-to-peer online marketplaces over the past three years has seen recreational boaters matched with boat-owners, chartering companies and captains. In short it's just like house-sharing website Airbnb - but for boats. Owners see their ships get the love and use they deserve while renters get to try out new sailing experiences, from submarines to superyachts. MailOnline Travel has rounded up six of the top companies that can match you with just the boat you need for your trip away. Top left is a superyacht from The World Is Not Enough, top right is the brand new Hanse 505, available in 2017, bottom right the schooner that featured in The Rum Diary starring Johnny Depp, bottom left is a high-tech luxury offering from Sail and inset is a yellow submarine in Liverpool you can stay in for just £62 per day.
Roofs decorated with 5,000 DIAMONDS, lashings of gold leaf and enchantment as standard: The most beautiful pagodas revealed
Adorned with gold leaf and intricate embellishments, the pagodas peppering Asia are wonders to behold. From the 14th Century Gyeongbokgung Palace in South Korea, to the Shwedagon Paya Pagoda in Myanmar - decked out with almost 5,000 diamonds - all of the temples have a common theme: peace and tranquility. Along with the bold design, the pagodas are also impressive for their sheer size. Top right is the pagoda at Meidai Lamasery Inner in Mongolia, bottom right Chureito Pagoda Fujiyoshida in Japan, bottom left Thambuddhei Paya Pagoda in Myanmar, top left Shwedagon Paya Pagoda in Myanmar and centre is Gyeongbokgung Palace in Korea.