O’Neill Triangle
The identity of O’Neill Triangle’s namesake is something of a mystery. The Board of Aldermen named it O’Nei...

O'Brien Oval
This oval honors Captain Thomas A. O’Brien (1884- 1918), who grew up nearby at 280 Burnside Avenue. He was killed o...

Ogden Plimpton Playground
This playground takes its name from two avenues that border the property: Ogden Avenue and Plimpton Avenue. The park is also b...

Old Fort Four Park
What was here before? This site was once part of the Jerome Park Racetrack between 1876 and 1890. The track was closed to m...

Olinville Playground
This playground bears the name of the Bronx neighborhood of Olinville, named after the author, professor and Methodist bishop,...

Olmstead Triangle
Olmstead Triangle and the adjacent Avenue honors the Olmsteads. Settlers of Westchester Village, their gravestones remain in ...

Oneida Triangle
Neighbor to 1,146.43 acre Van Cortlandt Park, Oneida Triangle is bounded by East 238th Street, Van Cortlandt Park East, and On...

Orchard Beach
Orchard Beach is one of Pelham Bay Park’s most distinctive features. Even though the beach itself is relatively new, vi...

Orchard Beach - Horseshoe Crabs in New York City Parks
Every May and June, horseshoe crabs emerge from Pelham Bay and the Long Island Sound onto Orchard Beach in Pelham Bay Park. F...

Osprey in New York City Parks - Pelham Bay Park
More than three times the size of Manhattan's Central Park, Pelham Bay Park is the City's largest park property. Visitors to ...

Osprey in New York City Parks - Pugsley Creek Park
Pugsley Creek Park has remained largely undeveloped. The wealth of untouched freshwater wetlands along the creek flowing inla...

Owen Dolen Recreation Center
What was here before? The area surrounding the park is known as Westchester Square. Originally the site of a Dutch out...