A former electrical substation is now home to an eccentric junk art masterpiece.

A majestic mansion designed in Mughalai style, complete with a turquoise onion dome.

With lush plants and flowers, huge trees, ponds, and hidden monuments, this place feels a bit like discovering Narnia.

The sumptuous ceiling was one of the last things Charles I saw before his execution.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

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

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

Public access to clean drinking water was an instant hit among the masses.

A historic arboretum and non-conformist, non-denominational park cemetery.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

The final resting place to 300 Victorian-era pets hides inside the city park.

Catacombs turned marketplace.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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

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.

A historic house left in "dramatic still life."

A mysterious artist-run cabinet of curiosities and library.

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