Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

Ancient Egyptian relief, claimed to depict an electrical light.

The oldest working mechanical clock in the world.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

An island made out of shells, including a cemetery.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

A modern day curiosity cabinet.

The multinational Burger King chain is banned from operating within 20 miles of a family restaurant filed under the same name.

The world's largest collection of the world's largest objects is in one small Illinois town.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

Roman ruins top white travertine terraces formed by ancient hot springs.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

An unsuspecting brick building outside Orlando houses decades of train ephemera.

On the side of Christchurch Mansion is an enigmatic block of dark limestone that dates back to 14th-century Belgium.

In Tulsa's Oil Capital historic district, even the bus station is "fauxback" Art Deco.

This palace was built for the last king of Myanmar.

A performance hall at the American Jewish University moonlights as a sci-fi film location set.

The largest collection of woven silk tapestries in the world.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

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

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

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

This Elizabethan hedge maze is one of only six in North America.