Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

A pair of club-wielding guardians stand watch over London's first public clock to feature a minute hand.

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

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

The broken skateboards that became a poignant memorial to a murdered skater.

This London plaque marks the spot where David Bowie's famous alien made his debut.

English antique dealers with a taste for the unusual.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

A cluttered and astounding collection of antiquities and curiosities.

The world's first underground farm is in a World War II bomb shelter beneath the streets of London.

Transmission tower outfitted with large crossbars that dampen wind-induced oscillations.