The attic of a four-century-old canal house hides a clandestine church.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

Life-sized bronze statues of fictional puppet characters.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

No one knows the origin of this creepy little stone man with an oversized phallus.

Baroque celebration of the end of the Great Plague of Vienna.

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

Macabre astrological automaton clock dating to the late 1400s.

Grotto replete with mystical designs laid out in glued shell mosaics.

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

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

A historic arboretum and non-conformist, non-denominational park cemetery.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

The last four extravagant street signs of London's historic banking street.