This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

It houses the remains of a 17th-century version of the Titanic.

This functioning parish church is also the site of many concert performances due to its wonderful acoustics.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

A reconstructed farm shows what life was like in Norway 1,500 years ago.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Monuments don't get much more metal than these three giant viking swords planted in a Nordic hill.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

Home to three historic ships from the age of Vikings.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

The charred, dead skeleton of an oak tree is said to have consoled a dying 16th-century Italian poet.

An 18th-century post box used to alert the church of sick and ailing foreign pilgrims.

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

A 15th-century monumental Latin inscription on this house celebrates Lorenzo Manilio's love for Rome.

A large replica of a monumental Roman inscription is located on the side of this museum.

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

This medieval church in Rome was almost destroyed following a terrorist attack in 1993.

This small Roman arch was transformed into a dwelling by the founder of the Trinitarian Order.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

This small church was constructed over the ruins of three temples dating to the Roman Republic.