This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Singapore's landscaping project is home to 18 incredible Supertrees.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Catch a scenic view of Warsaw's Old Town from the top of a centuries-old dumping ground.

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

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

Ancient snack bar of the Roman Empire re-opened.

Berlin's old airport.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

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

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

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

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

Considered by many to be one of the most dangerous highways in Alaska.

"Polynesia on the Plains."

One person's lost luggage is another person's treasure.

Once a bustling cotton factory, this early 20th-century building is now home to a thriving artspace.