An ancient monastery, a locked room, and a mysterious book heist.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

Be(w)ar(e) the moat around this historic Czech castle.

Puzzles within puzzles hide a golden treasure in this hedge maze.

Australia's largest traditional hedge maze features a Great Gnome Hunt.

The world's largest maze is a nature park with nearly 200 decision points.

New Zealand's epic shrine to all things puzzling.

This Vietnamese bar doubles as a multistory labyrinth.

A huge maze complex and whimsical miniature village in Tasmania.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

A psychedelic labyrinth on the San Francisco bay.

Millions of glowing microscopic organisms light up the waters of this luminous lagoon.

The subtle interplay of fire and water is hard to ignore at this remote Jamaican spring.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

In Costa Rica's cloud forest, the roots of a woody ficus create a botanical bridge.

An artist’s underground sanctuary, 40 years in the making.

The world's second largest single-dish radio telescope, once used to contact E.T.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

La Cara del Indio honors the Taíno chief who fought bravely against the Spanish invasion of Puerto Rico.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.

This museum preserves the heyday of Puerto Rican coffee.

The short hike is worth the stunning views and crystal blue waters of a secluded beach.