This 1920s Dutch barge is now a floating bookstore.

Cold war icon and onetime "hole" in the iron curtain.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

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

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