A radio tower with something unusual between its legs.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

This park built on a former fortress has a reputation for romance.

A mysterious "wedding cake" castle in the middle of the urban desert.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

These ancient pecked images are among the oldest and best-preserved in Mongolia.

A collection of old steam and diesel locomotives sitting in a fenced-off garden.

One of the most spectacular canyons in the world.

This former hospital was once one of the oldest mental health facilities in Europe.

On a small island, a replica of a Finnish village from the Iron Age.

A contemporary art installation housed within a Gothic cathedral.

Gargantuan pots of slow-cooked lamb, noodles, and red wine feed everyone at a Mallorcan harvest festival.

This historic electric train has operated with regularity since the early 1900s.

This spectacular bridge is part of an abandoned train line that once connected Mallorcan capital to the southeastern coast.

These Stolpersteine located in Spain honor Republican soldiers who perished at the hands of Nazis after the fall of France.

The largest cave on the island of Menorca was likely the site of Iron Age rites and rituals.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

The largest prehistoric cemetery on the Balearic Islands dates back over 2,500 years.

The widest natural waterfall in Estonia is a sight to see in all seasons.

This 16th-century cemetery became a recreational park during the Soviet occupation—today it's a little bit of both.

A massive tribute to Estonian history and culture.

Thousands of graves lurk below the surface of this park.

This mile marker stands at the unofficial end of a highway built to defend the United States from a Japanese invasion during World War II.