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

Remains of a station that only operated for one year.

A fortress built to pacify local uprising that had a stint as a Nazi concentration camp before becoming a five-star hotel.

A quirky collection flush with information on commode culture from ancient times to modern day.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

The spectacular Roshen Fountain show lights up the night sky all summer long, until it "hibernates" under the ice waiting for spring to come.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

World's largest crossword puzzle spans the side of a towerblock, its clues scattered throughout the city.

The largest collection of death masks in Ukraine.

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

When you've got to go, you've got to go.

Ukraine's oldest operating pharmacy now offers guests a fascinating walk through apothecary history.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

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

A subterranean Holocaust refuge within one of the world's longest cave systems.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

The largest catacomb system in the world.

This attraction was abandoned after the Chernobyl disaster.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

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

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A small memorial to a deadly night in Serbia that shook the world before it was swept under the rug.

Popular river that runs through the remote Serbian municipality of Leskovac.

Sealing couples' love since just after World War I.