This colorful mosaic remembers one of Britain's most deadly peacetime fires.

A brother statue swap has adorned this building's facade for centuries.

This neon sign is an homage to an Alfred Hitchcock film.

Glasgow's oldest pub has a proud literary tradition and possibly a ghost or two.

A unique art installation located on what was once considered the widest railway bridge in the world.

This bronze cat looks out over the Linlithgow Canal.

Dedicated to the Father of the British Fire Service.

Small sculpted heads of prominent phrenologists mark the outside of their former headquarters.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

A plaque commemorates a Victorian scientist's monumental discovery about waves.

A UNESCO-protected spiritual seat of the Old Serbian Kingdom and Empire.

This coffee shop lies hidden beneath a historic church.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

This pub boasts a curious history and may have inspired a Dickens character.

This 19th-century Turkish bath house survived the Blitz of London and is now an events venue.

Black cat statues guard this temple-like Egyptian revival factory.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

A plaque marks the underground site of one of London's "lost rivers."

This London marker celebrates the spot where the world-famous English band was founded.

Drink your espresso at a Victorian-era urinal in this underground-restroom-turned-coffee-bar.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.