The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

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

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

The childhood home of Earth's alien chameleon is a humble Brixton flat.

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

The Columbia Road Flower Market is now open every Sunday, rain or shine.

A famous burial ground with a history both grim and literary.

Bronze sculpture celebrating the relationship between Churchill and Roosevelt.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

Catacombs turned marketplace.

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

The signs of a long buried road can still be found hidden beneath a London sewer grate.

This South London cemetery holds the remains of more than 15,000 people.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A lone cannonball remains lodged in the walls of the Hotel de Sens as a sober reminder of a revolution.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

A colorful architectural gem in Seattle's uniquely modern Central Library.

This free, take-a-book shop seems like a trick but isn't.

Every last book in this bookstore is signed by the author.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.