This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

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

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

Barça football fans might see the insignia hidden in a church window as a divine sign.

The first modernist church in Europe.

A glimpse into the festive and private lives of medieval Europe.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.