On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

One of the largest busts in the world celebrates the German city's erstwhile namesake.

This giant glowing "beanpole" adds much-needed pops of color to an otherwise drab power plant.

Ruins of a German Castle on top of a towering stone pillar.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

Retirement home for giant obsolete machines.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

An eerie, derelict amusement park in Berlin.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This ancient structure appears Roman, but was constructed during the 16th century and was utilized until 1911.

The partially submerged ruins of a white marble quarry used in ancient Greece for over 1,200 years.

Temple complex that once housed the famous statue of Nike.

Northern Ireland's Brobdingnagian stepping stones.

A stunning Victorian abbey and walled garden on a lakefront.

This ancient Irish tower could easily have stood in for Rapunzel's prison.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

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 tribute to an iconic act of defiance from the Croatian War of Independence involving a small car.

Longest fortress system anywhere in Europe.