The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

Check the time in 145 countries at once with this East German relic.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

A fascinating insight into daily life in the Eastern Bloc.

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

An artificial date palm stands as a memorial to Warsaw's Jewish community.

Atop this library is one of the most beautiful green spaces in Warsaw.

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

Special benches that play Chopin's music are scattered throughout his native city.

The Polish capital has had a deep connection to its guardian mermaid for almost a millennium now.

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

The final resting place of more than 200,000 people, this is one of the largest cemeteries in Europe.

The world’s narrowest house makes for an awkward, four-foot-wide living space.

This hidden collection of everyday objects illustrates life within communist Poland.

An outlandish shoe shaped house built by an eccentric millionaire.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

This vintage short line in Amish country runs passenger steam train excursions and still hauls freight.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

This museum is dedicated to the first coast-to-coast highway.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

Nothing says indulgence like a 1,500-pound chocolate castle.