An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Human-made caves excavated to hide a secret society of wealthy pagans.

Europe's largest prehistoric mound – burial site of a legendary king?

A 200-year-old prison that now houses a peculiar crime museum.

"The Most Wonderful Wonder that ever appeared to the Wonder of the British Nation."

A modern day curiosity cabinet.

A free library to stumble across, one of many placed worldwide if you know where to look.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

Whiskey lovers, this is your happy place.

America's most famous piece of self-built architecture.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The last of its kind in the country.

Medical and zoological curiosities for sale.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

The site of the house Jack Parsons made famous both in life and death.

World-famous, Pink's still manages to keep its prized cult fetish status.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

One of the world's largest collections of rare and magnificent bird specimens.

Hidden away in a modern library are the remains of one of the 18th century's most celebrated wunderkammers.

Perfume museum and library.

How did a French journalist’s grave become the sexiest statue in the cemetery?

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.