The first monument in Estonia that was made by an Estonian sculptor.

Walk along the medieval fortifications that have been protecting Tallinn since the 14th century.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A floating cat sanctuary on an Amsterdam canal.

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

A little sculpture with a large wardrobe.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A hidden medieval crypt where a famous legend says the devil used to teach black magic.

An ancient Egyptian temple in the middle of Madrid, Spain.

A window into a long-lost world, these colorful tiles advertise a long-defunct range of purgative teas, harmless smokables, and diarrhea cures.

The oldest restaurant in the world is this old-world Spanish eatery, still known for its suckling pig.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A technicolor place of worship for Elevationists.

A museum in rural Utah documents the history of the Japanese Americans who were forcibly relocated there.

Dig for your own trilobites in this goldmine of invertebrates.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

The only completed wing of Utah's first capitol is filled with artifacts and odd stories about its past.