A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

This four-story steel sphere in Maryland was used to test biological weapons.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

A one-armed veteran of the Battle of Waterloo lies in a cemetery for one in the middle of a Chicago scrapyard.

Two massive and unstable sinkholes are yearning to unite, and their consummation could be catastrophic.

Home to the world’s oldest seismograph and a four-ton steel ball that makes its own earthquakes.

A celebration of all things tacky, garish, and bizarrely creative in the Romanian capital.

A long-abandoned provincial prison left to crumble in the frigid air of Ontario.

It is locally loved and ridiculed for literally looking like poop.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

"The greatest unknown literary treasure in Los Angeles."

A small but hugely whimsical theater where marionettes play out the "The Battle of Stalingrad."

A World War II gun battery sits at the easternmost point of North America.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Stone slabs along the coast warn of Japan's tsunami-ravaged past, often marking the highest point of a wave's reach.

The wing of this deserted Boeing 737 almost touches the Dunkin' Donuts next door.