The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

The remains of Crystal Palace Great Exhibition of 1851.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

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

The anatomical-pathological collection of a man who changed surgery.

Catacombs turned marketplace.

The curios of pharmacist and collector Henry Wellcome.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

An unusual round church in London with a Templar past.

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

A student driver's nightmare.

Eighty million natural history specimens call this gargantuan museum home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

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

The Guardian of Tallinn.

The oldest continuously operating pharmacy in Europe.

Once standing on solid ground, this slender beacon is a victim of the very shoreline it was charged with announcing.

Spend your honeymoon where the Devil had his wedding.

Mysterious craters may have been home to an ancient cult.