Giant marble phalluses on the sacred island of antiquity.

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

A small island dotted with old, historic Finnish buildings.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A subterranean house of worship carved right out of the bedrock.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

Steadily reminding Czechia of its past.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

"Holy Wisdom" overlooks the city that became its namesake.

A striking symbol of the Bulgarian capital.

This historic black and white monastery is one of Bulgaria's architectural jewels.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

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

Op-art architecture designed for happiness.

The final resting place for the remains of 143 Habsburg royalty.

Island wonderland for communist autocrats.

An ancient knight and a symbol of the city's freedom.

Bridge that died in war and was resurected.

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

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