This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

A open air theatre built on a cliff by an eccentric British woman.

These stark white cliffs were spat up by the sea and are slowly being retaken by it.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

Charles Babbage's proto-computer, painstakingly brought to life.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

This haunting stone chasm is a hotbed of mossy rock and English legend.

An ancient Thracian city where fire rituals were practiced on the largest cult altar in Southeast Europe.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Copenhagen's celebrated theme park and gardens.

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

Crawling into this primordial cave may feel disconcertingly familiar.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

As lake waters recede, a German village reemerges after more than a hundred years.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

The Incas turned this ancient Wari aqueduct into an imposing defensive gate.

Sleep in a glass pod dangling off a cliff.

Huge stone depressions which may have acted as an Incan agricultural experiment.

Death rituals and sacrifice inside a Peruvian megalith.

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

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.