A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

This abandoned Brutalist treehouse is a hidden architectural relic.

Odd outsider art installations surround a Gold Rush-era ghost town.

Walking by this fence is like strolling along a portal to various fictional worlds.

This modern labyrinth lies in the shadow of a ruined medieval castle.

Hopeless romantics will swoon over the sweet story behind this bright and colorful home.

A building facade covered with the statues of 11 giants of Tajik literature.

This overgrown Illinois water park offers a whole new type of adventure.

A fascinating collection of art made from petrified wood and fossils by two octogenarian twin brothers.

Massive still life just off the highway in Kansas.

An ancient octagonal weather station named for the eight Greek gods of wind.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

New Zealand's only running funicular railway.

A creepy, deserted mock Arabian village can be found in the middle of the Qatari desert.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.

One man's ambition created this psychedelic log home.

This isolated airport in the middle of the Everglades sees more alligators than planes.

A retro walk through the history of the tube.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Taste the white whiskey that the United States' first president once distilled and enjoyed.

A chance to sleep among the firs and pines of the Oregon forest.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

The site of a classic series of Laurel and Hardy pratfalls.