This ornate church has survived Nazi and Soviet occupation, including a short stint as a Soviet-era gymnasium and cinema.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

Troublesome students were detained in this tiny graffiti-covered university jail.

For the last century, this international border within a small town has appeared and disappeared various times.

The medieval network of canals hidden underneath the city is opened to explorers each year.

Beloved children's TV characters freckle the German city's streets.

This magnificent Art Deco church is a reflection of Lithuania’s turbulent history.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Explore the dark underground corridors of this graffiti-covered former military fortification.

Relics from an era long gone, sit idle outside this Estonian museum.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

This natural history museum houses one of the world's largest rat kings, a terrifying jumble of tangled rodents.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

This beloved marketplace mascot poops money and grants good luck.

A 300-kilogram egg sculpture that embodied a neighborhood revival.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

The final resting place for the remains of 143 Habsburg royalty.

The ruins of a fairytale castle with a tumultuous history stand high atop the mountains.

This no man's land slicing through the island is strewn with abandoned relics of another time.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Everything from miniature biblical scenes to life-sized statues are almond-based at this sweet and nutty gallery.