An unusual round church in London with a Templar past.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

The world's biggest version of the popular Swedish souvenir.

Few would expect the world's oldest preserved oil refinery to be found in Sweden.

Bring your hiking shoes, wool socks, and thermal underwear for a stay in these cozy forest huts.

The remnants of a record-setting industrial bucket system can still be found dotting the Swedish countryside.

Stone carvings record the Norse myth of Sigurd, providing a glimpse into Scandinavia's transition from paganism to Christianity.

This museum of Viking vessels allows visitors to take a replica out for a spin.

This patch of land is home to Sweden's largest burial mound, allegedly belonging to a mythical king.

This 2,000-year-old stone maze is one of the oldest in the country, but its purpose is still a mystery.

Unfortunately, you can no longer spend a night in this single-person treetop hotel.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

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

A surreal statue honoring Prague's favorite literary son.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

A Jenga-style cylindrical tower of books that appears to go on forever.

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

This spooky statue sits outside a famous Prague theater.

Macabre astrological automaton clock dating to the late 1400s.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.