Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

A museum of magic with a Sadist past.

Paris' linguistic guide to the international language of, yes, love.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

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

This massive library holds what was once the largest book collection in the world.

Abandoned railway line circling the city of Paris.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A modern day curiosity cabinet.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

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

The legendary building that needed ghostly approval before being built.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

Golden Gate Park's historic collection of plants.

The restored and active Victorian-era final resting place of San Francisco.

A monument to the love people have for their pets.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.