In Peru's Colca Valley, a birdwatcher's paradise

Some people head to Peru to climb Incan ruins; some go to sip pisco sours. Me, I went for the birds. The very big birds.

100 photos and videos for 100 years of Machu Picchu

100 facts for 100 years of Machu Picchu: Fact 100

This is the last installment of "100 Facts for 100 Years of Machu Picchu." On July 24, 1911, Hiram Bingham III, a Yale professor, came...

100 facts for 100 years of Machu Picchu: Fact 99

We're on the final countdown to the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram...

The road less traveled to Machu Picchu

Our first view of Machu Picchu was from across a cloud-covered valley. My daughter Betsy and I had hiked three hours in air so thick that...

100 facts for 100 years of Machu Picchu: Fact 98

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 97

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

The buildings at Machu Picchu, the centuries-old Peruvian citadel, have withstood the test of time.

100 facts for 100 years of Machu Picchu: Fact 95

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 94

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 93

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 92

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 91

This month marks the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 90

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 89

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 88

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 87

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 86

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 85

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...

100 facts for 100 years of Machu Picchu: Fact 84

This month will mark the 100th anniversary of the rediscovery of Machu Picchu in Peru. On July 24, 1911, Hiram Bingham III, a Yale...