Now owned by the National Park Service, this location was once home to illegal boxing matches.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

The most confusing clock in New York.

This small, hidden cove is home to abandoned boats.

Nature and beauty amidst pollution and industrial wreckage.

The oldest living tree in Manhattan comes shrouded in sinister legend.

Even for Egyptian royalty, the afterlife was bring-your-own-beef.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

‘Bush the old fire dog died of poison July 5th, 1869. RIP.’

A luxuriant botanical garden below sea level.

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

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A performance hall at the American Jewish University moonlights as a sci-fi film location set.

What was once a vast naval cemetery is now home to nesting birds and pollinating bees.

Church featuring "high Victorian gothic" architecture.

Walking around West Harlem reveals a scavenger hunt of beautiful bird murals.

The highest point on the island known for buildings that touch the sky.

Manhattan and the Bronx have been playing tug-of-war over this former island neighborhood for more than a century.

Surrounded by low rise buildings and partially converted into an auto body shop, this marble archway is the only vestige of a forgotten Manhattan estate.

This Dutch Colonial home is the oldest remaining farmhouse in Manhattan.