The steepest classic funicular in the world glides along a dizzying incline.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

This stone in Lake Geneva was once the reference point used to determine altitude in Switzerland.

An artful memorial to 4,000 fateful oranges.

The eerie burnt-out remains of a prominent building where 30 protestors lost their lives.

A peculiarly shaped brass sculpture hidden in a courtyard in central Lviv

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

This underground transport hub doubles as an art gallery.

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

Featured in one of the most iconic scenes in cinema history.

The deepest metro station in the world.

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

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

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

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

The first statue to be added to Saint Peter's Square in over 350 years is an ode to migrants and refugees around the world.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

This equestrian statue of Constantine the Great has been the subject of criticism for centuries.

The Vatican's secret porn-festooned bathroom was painted in erotic murals by one of the greatest artists of the Renaissance.

Breathtaking and huge 430 year old maps of Italy.

This flagpole ranks among the world’s tallest and can be seen from three countries.

An oasis of shade and color amidst the bustle of the old city.

This restored eighth-century palace is a shining example of ancient Umayyad architecture.

Just outside of Jordan's capital lies an ancient castle and intriguing caves dating back to the Copper Age.