Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

Brussels' favorite peeing boy has a sister.

Cozy basement bar sports an inventory of over 2,000 beers.

This non-profit theatre in the heart of Brussels is dedicated to hosting independent films.

A little sculpture with a large wardrobe.

A temple dedicated to the 13th-century Alevi Turkish dervish credited with bringing Islam to the Balkans.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

What happens when you cross a mayor and a painter?

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

When this 18th-century observatory's meridian was moved, it set Sweden's time back by 0.04 seconds.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

One of the world's first dedicated bank buildings in the world is now the oldest one.

A man has revenged his true love's betrayal through tears and stone genitalia.

Stockholm's deepest subway station is also a stunning ecological wonder.

The 19th-century home of Count and Countess von Hallwyl is now a museum.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Fortified medieval tower house with lovely roof garden.

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

If you look closely at the oldest bridge in Paris, you might notice hundreds of ugly faces leering from its sides.

The celebrated eyesore created by starry-eyed sweethearts.