On this Polish road, an optical illusion makes cars seem to roll uphill.

This formerly-prosperous Silesian mining town was completely demolished in the late 1960s and early 1970s as an attempt to cover up a secret Soviet uranium mine.

The center of this Polish border town was so thoroughly wiped out in World War II that only the foundations remain.

This public park collects signposts and other memorabilia related to local history, Polish-German relations and human progress

This quaint funicular has been ferrying people up and down an English valley since the Victorian era.

A dramatic sculpture high up in Yorkshire with vistas on an industrial scale.

The remains of a remote village that once housed over 1,200 dam workers and their families.

Cycle the solar system—from the sun to Pluto—right here on earth.

A small statue shaped like the grill of a Rolls-Royce marks the suburban location where the company’s first automobiles were manufactured.

A tribute to the women who quietly kept the local steelworks alive during both world wars.

This police call box harkens back to an era of pre-radio communications, and has a rather unique feature.

An engraved stone in a village church claims to be the grave of a minuscule folk legend.

Lava stone structures possibly dating back to the 19th century may have been a stopping point for voyagers between ancient Egypt and the Mayan Civilization.

Nature puts on a spectacular show at this blowhole on the eastern side of Gran Canaria.

The mummified relic of St. Catherine sits forever on a golden throne.

The wreckage of a tragic plane crash is on display at this museum devoted to a famous Italian conspiracy.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Tradition says that William the Conqueror dined on this stone after landing his Norman invasion fleet nearby.

This remarkably intact, 260-year-old cargo ship is only visible at the lowest of spring tides.

This seaside property, an example of Art Deco Streamline Moderne style, was designed to embody the curves of a great ship.

From battleships to Roman vessels, this museum explores the depths of shipwrecks in the region.

Every May, townspeople welcome summer with a bizarre pagan parade led by a man wrapped in garlands.

This tiny triangular cottage is one of a kind in England, and has housed everything from a watchmaker's studio to coffin storage.

Hidden in a grotto 26 feet below Nottingham's oldest hotel, this stylish subterranean drinking den is notoriously hard to find.