The silly symbol for an underground protest group is now scattered around the city.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

An underground city of salt.

Extremely famous in his native country, this Cracovian painter is all but unknown beyond Polish borders.

There are thousands of tributes and memorials to the King, but none quite like this one in a Kraków city park.

Two distorted Romanesque columns hold aloft a mine cart in honor of laborers who died during WWII.

Eighty million natural history specimens call this gargantuan museum home.

This charming Latvian lane doubled as Baker Street on the Soviet Union’s version of Sherlock Holmes.

Guests become prisoners on a visit to Latvian prison.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

The celebrated eyesore created by starry-eyed sweethearts.

The storefront of a ramshackle Parisian puppet theater.

Former hunting lodge of a duke who was an avid collector of impressionist works.

This bridge was constructed from the rubble of the infamous Bastille.

A series of abstract, silly sculptures represent the works of a great modern classical composer.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

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