The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

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

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

This picturesque castle in Poland has a rich history, including a legend that ties it to lost Incan treasures.

A bronze replica of an elm tree that honors the victims that perished in Pawaik Prison.

This colorful and quirky set of pegasus sculptures celebrate the works of poet Zbigniew Herbert.

This biographical museum honors the groundbreaking scientist at her birthplace in Warsaw.

A statue honors the children who fought Nazis in Poland.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This celebration of Latvia’s freedom and independence avoided demolition over half a century of Soviet occupation.

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

Flamboyant architecture from the turn of 20th century.

3,000 market stands in five former Zeppelin hangars.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

This micro-nation may be some sort of prank, but its constitution sure seems official.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

The final resting place of the last "gypsy king" of Poland.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A century-old tradition has culminated in a small but singular collection of feline effigies.

Follow the original medieval paths that wind through this intriguing section of the city.