This castle was designed to have as many windows as there are days in the year.

One of the biggest Buddhist stupas in Europe, hidden from most locals.

"Medieval" castle built in the mid-20th century by one family.

The only natural cave bath in all of Europe.

This castle played host to the largest great hall found in medieval Central Europe.

The remains of an entire Roman city can be explored in this interactive museum.

The massive white mound and accompanying water terraces are a striking geological oddity.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This grandiose staircase was part of the revival of a medieval Spanish architectural style combining Christian and Islamic influences.

Discover everything there is to know about Catalan giants and "Big-Heads."

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Tiny memorials honor individual victims of the Holocaust.

Life-sized bronze statues of fictional puppet characters.

A Spanish forest is filled with mysterious stone carvings.

Built between 1901 and 1908, this building is one of the most iconic examples of modernist architecture in Spain.

A man's curious and seriously small handmade objects from around the world.

An ancient well nestled at the foot of Glastonbury Tor, shrouded in Arthurian legend and revered for its purported healing waters.

Various sculptures are a rotating exhibit in this small town.

The cutest way to stay safe in traffic.

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

At the base of this tower, a plaque marks the original center point of the Netherlands.

This towering church is home to a world-famous organ and a treasure trove of medieval art.