Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

Remnants of a Victorian garden feature sitting in public woodland.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

A little slice of Japan and its aesthetics in London's Holland Park.

Catacombs turned marketplace.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A student driver's nightmare.

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

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

A kaleidoscopic warehouse-maze of handmade neon signs.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.