The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

An alchemist's "magic door" stands in the middle of a Roman park.

A three-shelf library serves as a memorial in the Jewish cemetery of Krems.

An ornate private entrance to the Vienna subway built specifically for the emperor.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.

Site of the 1889 murder-suicide of crown prince Rudolf and his lover Mary Vetsera.

Heralded as one of the prettiest castles in all of Czechia.

This monumental work of art symbolizes the coming together of a previously divided city.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

Residents of Berlin take their coffee and cake in one of the city’s most restful spaces: a cemetery.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

A slice of central Asia in the middle of Berlin.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

Blitzkrieg bop your way through Berlin's Ramones Museum.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A wunderkammer of mysterious objects and stories.

Started as a kitchen garden, now the second largest botanical garden in the world.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Once a path for Jewish funeral processions, this unassuming alleyway is rich in local lore.

The oldest trees in Northern Germany.

The first (but not only) upside-down house in Germany.

An elevator into the Baltic Sea.