These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This natural rock "church" might not be a proper chapel but that doesn't mean it's not beautiful.

An enormous cat made of recycled wood scraps.

A once grand hotel is being retaken by the wilderness it once capitalized on.

A peaceful international sculpture garden in upstate New York.

One man's swirling six-acre monument of stone.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

This mouldering abandoned mental hospital was once a center for progressive healing.

Art in the form of a winding, man made crack in stone.

With the touch of a button, you can read a randomly selected short story.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

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

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

Tenacious mummies survived dental problems, eternal entombment, and more than their fair share of devastating fires.

A library and museum dedicated to typography.

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

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

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

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

An essential stop before plundering, BYO Cutlass.

The one-time watch house for incoming ships at the Golden Gate now stands abandoned and hidden in trees.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.