The European Union’s tallest freestanding structure provides radio and television broadcasting to half of Latvia.

This former Nazi labor camp is now a poignant memorial, complete with giant Soviet-style monuments.

A railway bridge leading nowhere stands lonely in the middle of a meadow.

These abandoned vessels are destined to be reclaimed by the forest.

This impressively complicated radioastronomy research center was once a tool of Soviet spies.

The Latvian city of Ventspils is filled with dozens of cow statues showcasing unique themes.

The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

This ducal residence was once home to a future Russian empress and a French king in exile.

A memorial to the murdered Jews of Kaunas.

Over time, this castle grew to encompass the entire island.

Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

This wooden mosque is one of the few remnants of medieval Poland's Muslim Tatar community in this deeply Catholic country.

This lakeside bunker complex in Mamerki, Poland, housed the Supreme Military Command of Nazi Germany during World War II.

Open-air museum with a large collection of Soviet-era statues.

This striking structure is the Socialist-modernist centerpiece of a former Soviet spa resort.

Tiny memorials honor individual victims of the Holocaust.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

One of the oldest cemeteries in Germany was originally used for victims of a cholera epidemic.

Largely overlooked, this little fountain on Museum Island is a whimsical tribute to a Prussian king nicknamed the “Fatty Flounder.”

A massive relic of the communist era of Berlin.

This watchtower once presided over the Berlin Wall.

A prime example of socialist modernist architecture, wrapped in a enormous fresco about the media.

A small hippo-shaped fountain in Berlin, Germany.