Architectureal fantasy quarter of Rome.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

An alchemist's "magic door" stands in the middle of a Roman park.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

One time home to turn of the century explosives, now hidden under the Bay Bridge.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

Guns that have been defending San Francisco since 1904.

An enormous illuminated figure dances on the Las Vegas strip.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

Golden Gate Park's historic collection of plants.

A man-made island in scenic San Francisco Bay.

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

Barely visible foundations remain where Stow Lake’s “observatory” once welcomed visitors.

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

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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Tiki luxury on Nob Hill.

This turn of the century masterpiece has a mysterious goaty interloper.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.