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

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

Celebrated example of Ottoman architecture that also served as a site for brutal massacres.

Bridge that died in war and was resurected.

Former military fort and site of untold horrors during WWII, this island may become the Adriatic's next luxury resort.

A tiny church on a man-made island in the Adriatic.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A beautiful mountaintop mausoleum devoted to a Montenegrin icon can't seem to make everyone happy.

A curious cave church carved into the face of a cliff.