Now the site of a high school, this was almost the location of the largest cathedral in the US.

This block in downtown Brooklyn was a hotbed of antislavery activism along the Underground Railroad.

A cargo of beautiful music.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

Once a flowing stream and where the USS Monitor, the world's first ironclad, was built and launched.

Where the Monitor was launched and ushered in the age of the "ironclads."

Where one of Greenpoint's "five black arts" was practiced.

Nature and beauty amidst pollution and industrial wreckage.

If you were standing here on October 5th, 1950, you'd be dead.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

Nope, not Washington Irving's house.

The only subway station in the city that still makes use of gap fillers.

Red frames showcase remnants of one of New York's original subway stations.

The notorious headquarters of a corrupt political machine.

A posh members-only club with a literally dramatic history.

The one-time office of the architectural firm that ushered in the Gilded Age is now a Club Monaco.

This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

Cheap pizza and all of your naughty bedroom needs housed in a stunning example of Art Nouveau architecture.

There are owls with glowing eyes in Herald Square.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

An offbeat angle on the ocean viewed through an antiquated lens.

One of the first skyscrapers in Santa Monica, and a famous getaway for the Hollywood elite of then and now.