Walk through a well-preserved World War II Nazi prison and transit camp.

The last remaining example of a painted house from the medieval period in Nice.

This is Bremen’s oldest historic district, famous for its labyrinth of narrow medieval alleys lined with tiny, colorful 15th-century houses that resemble beads on a rope.

This figure was carved in the likeness of a voyeur, so that every time he spied across the street, he would find only himself staring back.

This altarpiece isn't a gilded baroque work taken from a church, but rather a recreation where everything (even the fence and lock) are made of paper and cardboard.

These "antimonuments" confront the Mexican authorities by memorializing the most troubling events in the country's modern history.

The world’s largest collection of cork models of ancient Roman buildings, made by a court baker and his son.

This 16th-century tower house has a little hidden secret and a connection to an Apollo astronaut.

An ancient Roman temple hidden in the basement of Römerpassage, a modern shopping mall.

Kloster Eberbach is one of Europe’s best-preserved medieval Cistercian monasteries, founded in 1136 and renowned for its austere Romanesque architecture and historic wine cellars.

A small wedge of East Berlin was once on the wrong side of the Berlin Wall

A statue of Granada's self-proclaimed "King of the Gypsies"

The biggest outdoor modern mosaic in Madrid

If Mario ever ended up in witness protection, this would be where

At Bank station, the tunneling shield that built the original Waterloo & City line tunnel is hiding in plain sight

The last place in Florida where wild bison roam

A meeting of art and architecture adorns this 5 star hotel

A lookout built from shipping containers with a rare view into the harbor’s busy machinery.

Atop this iconic central Brighton monument sits an inaccurate but innovative time keeping device

The Friedrich Ebert Memorial in Heidelberg commemorates the first democratic head of state in German history.

Luxembourg's most popular statue since 1923 has been missing for... 26 years!

Gustave Eiffel's masterpiece until the Eiffel Tower was built.

A whimsical Renaissance fountain sculpture from Florence, world-renowned for defying convention.