Today this former Nazi concentration camp stands as a poignant memorial to the victims of fascism, and a warning from history.

This 1920s Dutch barge is now a floating bookstore.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Taxidermied animals galore, by appointment only.

This life-size monument honors the legacy of a famous literary feline.

A living memorial to the trees London lost during the Great Storm of 1987.

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

A series of carved figures that scandalized British society.

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

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

After nearly 60 years, there's still a bear at Paddington Station looking for help.

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

This ancient oak plays host to carvings of magical elves, gnomes, witches, and other creatures prominent in local folklore.

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

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

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

A collection of full-size movie monsters opened to the public.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

Memorial of the Salem witchcraft hysteria in the town of Danvers, where it all began.

Final resting place of one of the classic authors of horror literature.

Last residence of H.P. Lovecraft featured in his story "The Haunter of the Dark."

An architectural statement of artistic intent smack in the middle of Providence, Rhode Island's Colonial uniformity.