Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

An artist's cute bronze subway sculptures belie his violent artistic past.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The site of a tragic massacre that spawned a multimedia franchise.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

An unrealized dream to wirelessly electrify the entire Earth.

A restored Shell gas station from 1937 that includes a tow truck, the original gas pumps, and the original office.

This abandoned boat was left in place thanks to its rotting beauty.

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

A 19th-century cabin built into a hollowed-out Sequoia tree.

At night, a grove of towering redwood trees growing through the pavement block out all light from the so-called “Dark Park” of Madrone Avenue.

These structures were inspired by both Native American shelters as well as, strangely, an ice cream shop.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

Quite simply the largest tree in the world (by volume).

Four hundred granite steps were built into this massive rock by the National Park Service.

Hidden in a hotel parking lot is a strange historical plaque erected by an obscure fraternal society.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

Dentist's hated concrete colossi are now beloved icons of the community.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

A classically inspired temple in Redwood City.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

This massive redwood tree has a hole in the base big enough to drive through.