During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

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

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

The reconstruction of this prominent building fulfilled a long-written command.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

The oldest housing complex in Riga is a mini timeline of architectural trends.

Over time, this castle grew to encompass the entire island.

This micro-nation may be some sort of prank, but its constitution sure seems official.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

Once a giant gingerbread factory, this space now hosts exhibits and workshops on the historic treat.

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.

While the U.S. and Soviet Union were engaged in a space race, Poland built a UFO on the ground.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

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

This fairytale medieval church in Poland originally spent centuries in Norway.

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

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

Museum dedicated to "the man who moved the Earth."

This Polish cave has housed a dragon, a brothel, and an enduring legend.

An underground city of salt.

This futuristic German television spire is actually the world's largest digital clock.