A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

This army of concretions is an unexplained geological phenomenon unlike anything else in the world.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This ancient theater was once the home of fierce gladiatorial battles.

A unique underground structure dating back to the 1st century BC.

Baroque celebration of the end of the Great Plague of Vienna.

The largest fountain in Bratislava.

A relic of the Cold War tucked away in the forested hills above Bratislava.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

Brass plaques embedded in pavement preserve the memories of those who lost their lives at the hands of Nazis during World War II.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

The site is dedicated to an investigative journalist whose murder triggered a political uproar that changed Slovakia forever.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Dedicated to a synagogue that was destroyed after having survived World War II.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

Structure built from the skulls of vanquished foes.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

This 3,800-year-old site contains markers used to study the movement of the sun and moon and create a lunar calendar.

This exclusive resort has completely covered a tiny Balkan island in a 5-star warren of guest rooms.

This memorial to local World War II heroes is slowly being reclaimed by nature.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

The sad remains of a monument to martial arts legend and movie star Bruce Lee—in the middle of Balkans.

Bridge that died in war and was resurected.