One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

The biblical sculpture honors those who lost their lives, homes and communities to the Chernobyl disaster.

The dining hall that nourishes workers in Chernobyl's Exclusion Zone is also open to visitors.

Abandoned ship reimagined as a street art canvas.

This strange moor has a song written about it, Bronze Age carvings, and an alien sighting.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

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

3,000 market stands in five former Zeppelin hangars.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

340-foot statue built to honour the Heroes of the Soviet Union.

This derelict superstructure was a very important warning system for the Soviet military.

The first declared National Monument in the United States.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.