Dictionary Johnson’s favorite feline.

This home on a quiet suburban street is completely covered with vibrant mosaics.

A naturally mummified 2,000-year-old man.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

Following the trail of an old metro line, this scenic path is haunted by a creepy spriggan statue.

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

A collection dedicated to the treatment of disease, held in London's oldest hospital.

Repository for more than 22 million pickled specimens.

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

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

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

This pub was 238 years old when it decided to revamp its image: It started serving Thai food.

This coffee shop lies hidden beneath a historic church.

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

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

At this small museum, visitors can view artifacts from the only battlefield in London during the War of the Roses.

An eccentric Victorian aristocrat's enormous collection of medieval armor and weapons from around the world.

This museum is dedicated solely to this millennia-old handheld cooling device.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

A relic from one of London's worst 19th-century slums.

The pockmarks across the building's facade are remnants of the Blitz.