Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

The coffin-shaped church was once home to monks who slept in coffins.

Nearly 300,000 acres of wildlife, natural splendor, and a hidden ghost town have been designated a national monument.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

A pyramidal marker where the borders of Venezuela, Brazil, and Guyana meet on top of Mount Roraima.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

The tiny statues form China's only known terracotta army from the Han dynasty.

Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

This collector's home is a constant work in progress.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

The world’s largest underwater sculpture is found just off the coast of Nassau.

An ingenious solution to a tricky engineering problem, this spiraling bridge takes drivers for a dizzying spin.

This unassuming stone commemorates a condiment factory gone up in smoke.

The house of a former Argentinian president stands protected within a large glass case.

Divers can encounter an abandoned warship encircled by a giant kraken submerged in the British Virgin Islands.

The largest salt farm in the Canary Islands is located at the foot of an active volcano.

Its vast collection of wondrous gadgets details the fascinating history of information technology.

At this museum in Iceland, visitors can sample fermented Greenland shark.

Walk through row upon row of manicured miniature trees at the United States' largest bonsai nursery.

An all-female order shares an ancient culinary art with visitors at their mountaintop monastery.

Hidden beneath the waters of Lake Michigan rests a perfectly intact ship from the early 1900s.

This enormous World War II relic is one of the largest wooden structures in the world.