Flamboyant architecture from the turn of 20th century.

Medical museum that houses most notably the taxidermied remains of Vladimir Demikhov's famous two-headed dog experiment.

A black cat protests the City Guild in Riga's Old Town.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

Home to 200 plaster casts of Scandinavian proboscises.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

The world's most active stratovolcano is almost always erupting.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

Five candy-colored villages on the Italian Riviera.

This Australian beach is composed of tiny shells.

Alien rock formations grown from the sands of an Australian national park.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

The city that saw the birth of Sweden is now home to an impressive collection of work from its favorite artist.

These Australian rock formations look like Martian beehives that have grown up out of the landscape.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Formerly known as the Malay Quarter, Bo Kaap is a colorfully-painted suburb located in the “Mother City” of South Africa.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

There are lots of hands and feet stamped in the cement in front of Grauman’s Chinese Theater, but Mel left behind something extra.

A museum based on the collection of a Victorian family. Housed in a remaining Victorian villa.

A gallery specifically dedicated to the botanical illustrations of a remarkable traveling lady.