The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

Three historic trains run on a half-mile track that features a tunnel.

The childhood home of the famous general's mother is now a small, walled garden.

Legend has it that this church faced a troll problem, leading to the affixing of a stone face of Satan above the entrance to deter further encounters.

Take a leisurely walk through the park to find the seven giant troll sculptures hidden throughout the park.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

Climb inside an iron crystal magnified 165 billion times its normal size.

Lavish royal estate punctuated with heated greenhouses.

Meet the bronze beloved pet to a family of famous peeing statues.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

Machinery left over from California's once thriving mercury industry now attracts artists and explorers.

The smallest post office in the United States is no bigger than a broom closet.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

A six-story-tall golden pyramid, surrounded by a moat.

A lonely chimpanzee lures you into a narrow alley leading to this hidden shrine.

A concrete block embedded with thousands of pulled teeth was created by a local dentist to memorialize his dog.

If you dial the number in this abandoned office window "Sam Spade’s" secretary will ask you to leave a message.

The only parking meter in the entire town, it is surrounded by 100 free spaces.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.