When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

Split's smallest church, and one of its oldest, has been reconstructed inside the city's Roman walls.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

Construction of this bridge was once described as an "act of violence" against a neighboring country.

Longest fortress system anywhere in Europe.

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

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

A full figure 4th century incorruptible saint lies in a glass coffin in Croatia.

An ancient knight and a symbol of the city's freedom.

Gargoyle head that brings good luck.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

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

Here lies a legend of three sisters, all in love with the same mariner.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

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

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

A maze of underground tunnels beneath one of the most beautiful forts in Serbia.

Backwards hour and minute hands and a timing mechanism that fluctuates with the temperature led to this clock tower's local nickname.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Memorial to the 89 children killed during the NATO bombing of Serbia.

A NATO bombing took the lives of 16 civilians in 1999—the ruins remain in the center of Belgrade.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

The unusual sculptures are believed to be powerful political symbols.