Accessible only at low tide, the deserted island is dotted with World War II ruins.

A book bound in the skin of an infamous criminal, along with countless other specimens.

The fountain marks the area where hundreds of accused witches were burned at the stake.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

The phone booths in this English town have distinctly milky hues.

A blunder resulted in these charming stone-lined streams becoming the target of a Nazi bombing.

The English Civil War began right here in 1642.

A curious urban windmill once owned by a renowned British mathematical physicist.

These 90-year-old murals of local kings, Vikings, and outlaws hide in plain sight in a beautifully baroque shopping arcade.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

A Christian monastery stands on what was once a holy Incan temple.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This is why we can't have nice things on the Incan Trail.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

On this tiny spot of land in the middle of Lake Titicaca the only ones who do the knitting are the men.

A painting in the historic Cathedral Basilica depicts Jesus and his disciples dining on a traditional Peruvian menu.

A backdoor to Machu Picchu that only the most foolhardy infiltrator would attempt to breach.

Death rituals and sacrifice inside a Peruvian megalith.

These steeply terraced ruins are a stop along the Inca Trail to Machu Picchu.

The Uros people live on floating reed islands in lake Titicaca.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.