This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

These ancient ruins hide in plain sight next to a dessert shop.

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

A coin-operated model railway tucked inside a busy train station

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

Twisted buildings adorn the banks of the Rhine river.

A sculpture of a courtesan towers above Lake Constance, recalling a church scandal.

Enter the cabin of a life-sized Hindenburg replica.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Visit Europe's largest subterranean waterfall, carved by water from the glaciers of the towering peaks surrounding the valley.

A self-explanatory attraction allows fans to respectfully remember and honor a comedy legend.

This staircase in a lush tropical grotto was built by enslaved laborers and renamed to honor Queen Victoria's role in ending slavery in the British Empire.

Tours drive right past this military burial ground to get the the Shirley Heights lookout.

Where Saint-Martin ends and Sint Maarten begins (or vice versa).

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

This replica medieval European village in the Dominican Republic was built by a Hollywood set designer.

A map store filled with original Cold War era Russian maps of the world.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

3,000 market stands in five former Zeppelin hangars.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

A statue built to honor the elite soldiers who fought for Latvia during World War I.

With a design inspired by traditional Latvian textiles, this monument honors the Latvian people who suffered under Soviet occupation.

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