A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

Historic house-museum dedicated to the revolutionary gay graphic artist Tom of Finland.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Frida Kahlo's childhood home, now a museum of her life and works.

Germany's last remaining Lenin statue has become a lightning rod of debate about the country's divided past.

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

A micro-communist utopia in Spain with no police, no mortgages and full employment.

The final resting place of many of Germany's most famous communists.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

A replica of the straw hut where Vladimir Lenin lived in hiding, disguised as a hay farmer, in 1917.

This newly renovated Soviet-era outdoor exhibition center is bigger than the principality of Monaco.

Gargantuan home of Russian science.

Former estate of Lenin, now home to his death mask.

Stalinist skyscraper built with help of cryotechnology.

One of the largest collections of socialist realist art shows the surprising depth of the official art of the Soviet Union.

The tallest hotel in Europe.

Former headquarters of the KGB.

Moscow's imposing monument to the Space Age.

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

Immortal combat in a Moscow museum.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.