The first fresco Diego Rivera painted in the United States can be found in the former San Francisco Stock Exchange.

In this century-old literary safehouse, print is alive and well.

The remains of a 12th-century chapter house in Golden Gate Park.

Gold Rush-era tombstones line the park's paths.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

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

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Visible below the waves are memorials to the city's Gold Rush dead.

The author of Frankenstein is buried here, along with her parents and the heart of her husband, the poet Percy Bysshe Shelley.

There are no bodies inside these stone coffins. And there never were.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

The corner walls of a primary school showcase a Mexican version of memento mori.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

An unpaid bill, a stolen stone, and a famous fashion designer rest peacefully alongside a heroine of Highlands history.

Three witches are said to be buried beneath these unmarked concrete graves.

Wander among the gravestones in this historic border town.

This graveyard is home to the so-called "Witch's Circle."

Hike the ruins of a zoo that was shut down by an unsolved murder.

This house covered in art created with volcanic rocks is shrouded in macabre lore.