The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

One woman's dream became a train hotel in her backyard.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

Less a museum than a bizarre fantasy world created by artists and engineers.

This mosaic-covered bar is brimming with curated curios.

The first musical instrument of its kind to be built in the United States—and the world’s tallest.

The larger-than-life art installation at Tampa International Airport welcomes travelers to town.

A tribute to a future time when gravity is conquered.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

A memorial to legendary newsman, publisher, and owner of La Gaceta, the only trilingual newspaper in the U.S.

A tiny, unassuming park in Tampa that belongs to the Republic of Cuba.

This century-old bakery produces 18,000 loaves of traditional Cuban bread every day.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The walls of the statehouse tell the story of Ohio’s prehistoric past.

Marvel at this turn-of-the-century masterpiece that has been turned into a rather stately supermarket.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

A miniature world of concrete and stone in Springfield, Ohio.

A speakeasy takes on Chicago's drinking culture.

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.

The hallucinogenic center of the ancient world.