A monolithic monument in Greater London.

A mysterious shape catches the eye in this 16th-century painting.

It celebrates a very stinky task and salutes London's fatberg-vanquishing team.

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

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

A gallery specifically dedicated to the botanical illustrations of a remarkable traveling lady.

This mysterious and unique painting is filled with symbolism.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

These Victorian era devil sculptures were designed to spite a local vicar.

This peeling mural of Adam and Eve was inspired by the greenhouses at Kew Gardens.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

It's a mystery why these remains were found with no traces of their bodies in sight.

England's most famous front door has an accidental doppelganger.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

The London statue that imitates passersby.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

The gigantic skull of a long-extinct species that once roamed the forests of England and Ireland.

Murals of the wild parties once held on the frozen River Thames.

The Art Deco artwork depicts gilded carriers of deadly illnesses.

This knockout museum lies in a sleepy corner of London.

A recently restored Shoreditch landmark with ties to Jack the Ripper.

The canine-themed book collection claims to be Europe's largest dog library.

Colorful murals by Jean Cocteau hide within this peaceful London sanctuary.