Sweden's "good old days" painstakingly re-created in a model village.

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

Stockholm's narrowest alley is barely over two feet wide.

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

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Stockholm's deepest subway station is also a stunning ecological wonder.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This bridge's unique architecture honors nautical heritage and encourages self-awareness.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

A sculpture serving as an homage to Pope John Paul II.

Ancient ruins hidden underneath a modern luxury hotel.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Romans decided this 16th-century "talking statue" was so ugly, they named it after a primate.

Breathtaking and huge 430 year old maps of Italy.

This ancient market is often referred to as the oldest shopping mall in the world.

A monumental fountain in Rome features a large statue of Moses that has been criticized for centuries.

Venice's "Island of the Mad."