Underwater roads undetectable from the surface used for escape routes from foreign invaders.

Once known throughout Europe, this tiny and unusually progressive 18th century micro-nation within Lithuania now lies in ruins.

Record-holding coffin moonlights as an eatery run by undertakers.

A gigantic statue of a Russian soldier watches over the ancient city of Plovdiv, a prominent reminder of the Soviet period in Bulgaria.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

The Hungarian biochemist whose research helped develop mRNA-based vaccines for Covid-19.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.