On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A beautifully eclectic mix of architectural styles.

Amsterdam's Red Light District leaves little to the imagination.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

Metro station with a claim to rock n' roll fame.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

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

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

The most visited, and possibly most controversial, museum in Germany.

The only pollutant in the clear blue water is sunscreen.

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

Come for the flowers, stay for the bats!

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.