Also known as Uncle Karl, the beloved bronze copper keeps a watchful eye on St. Stephen’s Basilica while people rub his lucky belly.

A much-loved sculpture depicting the hero of a 1956 anti-Soviet uprising.

A triumphant marble and bronze fountain depicting a 15th-century Hungarian king and his hunting party.

From cartoon characters to tiny tanks, a guerilla sculptor's little bronze statues are hidden throughout the city of Budapest.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Museum dedicated to the terror regimes of Hungary.

Once the home of a hermetic monk, this cave now houses a small church.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

An impressive monument to Poland's independence.

A tribute to the first human in space.

A cluster of headless, armless sculptures looms within a popular Polish park.

An abandoned football stadium with a tragic past.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

The site where two doves fell in love.

A museum which takes visitors to the côté obscure of Paris.

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

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

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