Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

A hobby born from insomnia has turned into a hangar full of objects that have been be-buttoned by the Button King.

The world's oldest continuously operating airport was founded by the Wright Brothers.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

"I did this all while you were watching TV."

A marvel of Byzantine engineering under the streets of Istanbul.

A former major munitions plant that has been converted into a sprawling art space.

The Connecticut village named for its subterranean thunder.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

The legend associated with these ruins understates the splendor of the mansion that once stood here.

Send a postcard while vacationing with Satan.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Impossibly life-like natural history models created out of glass by a father and son.

Unable to build support structures on glaciers, the engineers for this tramway were forced to design a unique system.

Modest by day, illuminated majestically at sunset.

World's tallest monolithic statue has served as a pilgrimage site since its completion in 993 CE.

Model Trains and Much More in Hamburg.

This German museum devoted to the simple wonders of salt is actually built over an old saltworks.

More than 5,000 contemporary and "historic" mustards from around the world.