The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

A well-worshipped shrine to the Virgin Mary nestled inside the last of Zagreb’s historic gates.

This spooky statue sits outside a famous Prague theater.

A surreal statue honoring Prague's favorite literary son.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

Macabre astrological automaton clock dating to the late 1400s.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

For more than 170 years, this family-run bakery has been serving Berlin’s best Baumkuchen, or “tree cake.”

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Someone loved this song enough to carve all of its lyrics onto a tree trunk in a Berlin park.

One of downtown Berlin's last reminders of its Communist past.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A fascinating insight into daily life in the Eastern Bloc.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

Visitors are treated to a stained glass kaleidoscope interior inside this work of art.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.