This legendary dive bar boasts a collection of over 1,300 clown figurines.

Long before the hollyhocks and colorful facades, this lane was notorious for witch trials, infanticide, and prostitution.

This aged paving stone, marked by a maiden's foot imprint and the tales of her plunge from the cathedral tower, serves as a memorial to a tragic local legend.

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

A piece of stonework relief commemorates the site where the Devil's rage, and odd apparel, destroyed a house.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

Sweden's largest remaining gantry crane is a relic of Gothenburg's industrial past.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

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.

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

A wooden street sign is the last remnant of this 400-year-old alleyway.

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

A somber statue commemorating a Danish merfolk-tale.

At these downtown crossings, pedestrian lights show axe-wielding Vikings instead of the usual walking figures.

This sculpture in Denmark presents Arnold Schwarzenegger embracing his own doppelgänger.

A giant pair of rose-tinted sunglasses offers an illuminated view of Aarhus Bay.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

Organisms normally seen under a microscope decorate this church.

The unexpectedly beloved remnants of a controversial thermal power plant.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.