A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

A bizarre roadside attraction and the first instance of miniature golf in the world.

In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

Just below the surface, shrimp are producing temperatures hotter than the sun.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

This lush Florida island is home to the ruins of a crooked ship breaker's tiny empire.

A mysterious castle built as a monument to lost love.

Diego Rivera's massive tiled fountain and failed infrastructure project.

The only castle in North America to ever house European sovereigns.

Twelve natural mummies are displayed in the crypt of this former monastery school.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

An ancient Egyptian temple in the middle of Madrid, Spain.

The earliest known map to show America, discovered by accident at a Paris bookshop.

Stuck in the middle of a modern Madrid city block are the remains of a 19th century sports complex.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

Commonly acknowledged as the only public monument to the Devil himself.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

This underground church is topped with a 500-foot cross that is seen by many as a beacon of fascist hubris.