This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

Third time's a charm, or in this case, two testicles are.

A brutalist gem towering over the heart of Milan.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

There's something in the air as history repeats itself at this museum dedicated to the Swedish pop band.

A heated statue pays tribute to one of Sweden's great actresses.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's deepest subway station is also a stunning ecological wonder.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

An iconic Soviet statue of working-class people.

Gargantuan home of Russian science.

One of the world's tallest statues is also one of its most hated.

The tallest hotel in Europe.

Back in the tiny USSR.

Moscow's imposing monument to the Space Age.

Former headquarters of the KGB.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

Immortal combat in a Moscow museum.

Museum celebrating the achievements of the Soviet space program.