An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

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

Eighty million natural history specimens call this gargantuan museum home.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Putting the "mod" in "modular" since 2000.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

There's an exclusive Beefeaters pub hidden in the Tower of London.

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

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

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

This educational institution and reference library specialize in the psychic arts and mediumship.

An archive of ceramic eggs painted to record clowns' personal makeup designs.

The remains of the great moral philosopher reside in a university in London.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

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

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

The monster at the center of the Darwin Center Spirit Collection.

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

Repository for more than 22 million pickled specimens.

One of the world's largest collections of pathological specimens.

This coffee shop lies hidden beneath a historic church.

A network of concealed passageways lies within a busy London Underground station.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

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