A miniatures park with a model of Wolf's Lair as it looked during World War II.

Boats must transform into railroad cars to navigate this Polish canal.

This 13th century Gothic brick castle is the largest in the world by surface area.

This antique thermometer honors the creator of the first universal temperature scale.

A merchant court dedicated to the fictitious King Arthur is heavily adorned with bizarre Renaissance art.

Modern art commemorates one of the first military actions of World War II.

A floundering Polish shipyard was once the soul of the Solidarity movement that capsized communism.

The site of the first battle of World War II.

This fairytale inspired, warped building houses restaurants, shops, and a radio station.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

This towering statue of Jesus provided internet to the surrounding area.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

One of the shortest streets in York has an especially odd name.

A century-old tradition has culminated in a small but singular collection of feline effigies.

A sweet symbol marks the place where torturous executions were once carried out.

An artist's whimsical transformation of everyday objects.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

360° views of the city plus five floors of optical illusions and hands-on science.