High in the clouds of San Marino sits an ancient tower with some curious prisoner graffiti.

The Slovenian architect designed many landmarks in the capital city, including his own dream house.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

A crumbling World War I fort that is reached through a series of concrete tunnels.

This one-time health resort was used by aristocrats around the world.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

A musical instrument played by the sea.

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

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

Longest fortress system anywhere in Europe.

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.

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

Bohemian paradise covered in majestic forests.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Looming communist pillar with a Czech twist.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Steadily reminding Czechia of its past.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Macabre astrological automaton clock dating to the late 1400s.

This former quarry is now a picturesque gorge that hides a sunken lake.

What looks like a suicide in progress is actually a statue of Sigmund Freud.