An all-American grocery store in Paris sells U.S. "cuisine" like Pop-Tarts and Heinz ketchup to homesick ex-pats.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

The first green space constructed on an elevated viaduct.

France's most famous cemetery, with some of its most curious tombs.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

Moscow's imposing monument to the Space Age.

Former headquarters of the KGB.

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

World's largest bell sits on the grounds of the Kremlin in Moscow.

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

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

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

A former imperial sea-fortress and Soviet prison.

An abstract monument to a symphonic composer.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

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

3,000 market stands in five former Zeppelin hangars.

A black cat protests the City Guild in Riga's Old Town.

Flamboyant architecture from the turn of 20th century.

This attraction was abandoned after the Chornobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The dining hall that nourishes workers in Chornobyl's Exclusion Zone is also open to visitors.