This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

After the construction of a nearby cathedral obstructed the view, the oldest belfry in Belgium was more than doubled in height.

A fascinating and enormous collection of natural history exhibits stained by a dark colonial legacy.

Most prolific publishing house in the 1600s open to the public.

The highest point in Belgium is a staircase to nowhere.

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

According to myth, there's a bloody explanation for the beautiful bright red color of this rock formation set amidst alpine vegetation.

This Soviet statue is based on a piece of propaganda that's been elevated to national myth.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

This beautiful medieval Serbian monastery is home to frescoes, peculiar sculptures, and historical curiosities.

This beautiful Croatian fortress is haunted by legends of forbidden love.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Of five volcanoes located in the massive Tengger caldera, this cone is the youngest and most active.

This massive complex is made up of hundreds of smaller temples that date back to the ninth century.

When the Soviets destroyed the historic Armenian monastery they somehow left its bell tower intact.

A cluster of historic bathhouses built on the famed hot springs that gave the Georgian capital its name.

Destruction from Armenia's 1988 earthquake inspired an artist's sculptures of scrap metal.

An unusual double-stelae obelisk with ancient and mysterious origins.

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

The ruins of a medieval monastery built on a perilous slope.

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

This historic hotel preserves many treasures from its heyday hosting passengers on the Orient Express.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.