WARY

The John A. Hartford House, now known as Hartford Hall, is a historic house on the campus of Westchester Community College. It was built in 1930–32 by John A. Hartford (1872–1951), company president of the Great Atlantic and Pacific Tea Company (A&P). The house was designated a National Historic Landmark in 1977 for its association with Hartford, who oversaw the rise of A&P into the nation's first national chain grocer. The building now houses the office of the college president, among other uses.

Westchester Community College (WCC) is a public community college in Valhalla, New York, in Westchester County. It is part of the State University of New York (SUNY) system.

Kensico Cemetery, located in Valhalla, Westchester County, New York was founded in 1889, when many New York City cemeteries were becoming full, and rural cemeteries were being created near the railroads that served the city. Initially 250 acres (1.0 km2), it was expanded to 600 acres (2.4 km²) in 1905, but reduced to 461 acres (1.9 km²) in 1912, when a portion was sold to the neighboring Gate of Heaven Cemetery. Many entertainment figures of the early twentieth century, including the Russian-born Sergei Rachmaninoff, were buried here. The cemetery has a special section for members of the Actors' Fund of America and the National Vaudeville Association, some of whom died in abject poverty. The cemetery contains four Commonwealth war graves, of three Canadian Army soldiers of World War I and a repatriated American Royal Air Force airman of World War II.As of December 2021, eight Major League Baseball players are buried here, including Baseball Hall of Fame inductee Lou Gehrig.Sharon Gardens is a 76-acre (31 ha) section of Kensico Cemetery, which was created in 1953 for Jewish burials.

Blythedale Children's Hospital is a specialty children's hospital in Valhalla, New York, United States. It is the only independent children's hospital in New York State. The hospital is dedicated to the diagnosis, care and rehabilitation of children with complex medical and rehabilitative needs. The hospital opened a new, 56,000 square-foot inpatient hospital in December 2011. The new inpatient facility accommodates 94 patients in single or double rooms and includes a 46-bed Infant & Toddler and Post Neonatal/Post-Pediatric Intensive Care Unit for medically fragile patients, many of whom require weaning from mechanical ventilation. The new building also includes a 30-bed Pediatric & Adolescent Unit, and a (expanded, 2021) 18-bed Traumatic Brain Injury Unit.The hospital also has its own on-site public school district, the Mount Pleasant Blythedale Union Free School District.

The Kensico Cemetery station was a commuter rail stop on the Metro-North Railroad's Harlem Line that served the nearby Kensico Cemetery, to the north of Lakeview Avenue. Located along the platform behind the buildings at Sharon Gardens, the station was similar to the still-existent and nearby Mount Pleasant station in which it served friends and family of those buried there instead of actual commuters.By the late 1970s the low-level station saw only three trains a day on weekends, and was a flag stop for one train on weekdays. Upon the electrification of the Harlem Line between North White Plains and Brewster North in 1983, the station was closed given its redundancy to Mount Pleasant and the cost to modernize the station.

The New York School for the Deaf is a private school for the deaf in Greenburgh, New York, in Westchester County just north of New York City, United States.

The North County Trailway is a 22.1-mile (35.6 km) long paved rail trail stretching from Eastview to Baldwin Place in Westchester County, New York. It is also part of the statewide Empire State Trail.

Valhalla is a hamlet and census-designated place (CDP) within the town of Mount Pleasant, in Westchester County, New York, United States, in the New York City metropolitan area. Its population was 3,162 at the 2010 U.S. Census. The name was inspired by a fan of the composer Richard Wagner, and the hamlet is known both as the home of the primary hospital campus of Westchester Medical Center and New York Medical College and as the burial place of numerous noted people. Valhalla is the realm of the gods in Norse mythology.

On the evening of February 3, 2015, a commuter train on Metro-North Railroad's Harlem Line struck a passenger car at a grade crossing near Valhalla, New York, United States, between the Valhalla and Mount Pleasant stations, killing six people and injuring 15 others, seven very seriously. The crash is the deadliest in Metro-North's history, and at the time the deadliest rail accident in the United States since the June 2009 Washington Metro train collision, which killed nine passengers and injured 80.The crash occurred after traffic on the adjacent Taconic State Parkway had been detoured onto local roads following a car accident that closed the road in one direction. At the grade crossing, a sport utility vehicle (SUV) driven by Ellen Brody of nearby Edgemont was caught between the crossing gates when they descended onto the rear of her car as the train approached from the south. Instead of backing into the space another driver had created for her, she went forward onto the tracks. Brody died when her vehicle was struck by the train; as her vehicle was pushed along the tracks it loosened more than 450 feet (140 m) of third rail, which broke into sections and went through the exterior of the first car, killing five passengers and starting a fire. Investigators from the National Transportation Safety Board (NTSB) focused on two issues in the accident: how the passengers were killed, since that rarely occurs in grade crossing collisions; and why Brody went forward into the train's path. After an unusually long delay for such investigations that it declined to explain, the board's 2017 final report found the driver of the SUV to be the cause of the accident. It found no defects with the vehicle, the crossing signage and associated traffic signal preemption, or the train engineer's performance. It found that the failure of the third rail to break into smaller segments contributed to the fatalities on the train; while the report ruled out proposed explanations for Brody's behavior such as the placement of her car's gear shift lever, it could not offer any of its own. Despite the report's findings, lawsuits against the town of Mount Pleasant, which maintains the road along which the grade crossing is located, Westchester County, the railroad and the engineer are proceeding.

WXPK (107.1 MHz), branded as 107.1 The Peak, is a commercial FM radio station licensed to Briarcliff Manor, New York, and serving the northern suburbs of the New York metropolitan area. It is owned by Pamal Broadcasting and broadcasts an Adult Album Alternative (AAA) radio format. The radio studios are in White Plains and the transmitter tower is off the Sprain Brook Parkway at the Westchester County Correctional Facility in Valhalla.

Valhalla station is a commuter rail stop on the Metro-North Railroad's Harlem Line, located in Mount Pleasant, New York. Trains leave or arrive approximately every 20 minutes during peak periods, hourly otherwise, to Mount Kisco, Southeast or Grand Central Terminal. It is 25.5 miles (41.0 km) from Grand Central Terminal and travel time there is approximately 41 minutes. The station is popular with commuters from the interior of northern Westchester County given its location at the foot of the Taconic State Parkway. The station is the southernmost station in the Zone 5 Metro-North fare zone.

The Catskill-Delaware Water Ultraviolet Disinfection Facility is a 160,000-square-foot (15,000 m2) ultraviolet (UV) water disinfection plant built in Westchester County, New York to disinfect water for the New York City water supply system. The compound is the largest ultraviolet germicidal irradiation plant in the world.The UV facility treats water delivered by two of the city's aqueduct systems, the Catskill Aqueduct and the Delaware Aqueduct, via the Kensico Reservoir. (The city's third supply system, the New Croton Aqueduct, has a separate treatment plant.) The plant has 56 energy-efficient UV reactors, and cost the city $1.6 billion. Mayor Michael Bloomberg created research groups between 2004-2006 to decide the best and most cost-effective ways to modernize the city's water filtration process, as a secondary stage following the existing chlorination and fluoridation facilities. The UV technology effectively controls microorganisms such as giardia and cryptosporidium which are resistant to chlorine treatment. The city staff determined that the cheapest alternatives to a UV system would cost over $3 billion. In response to this finding, Bloomberg decided to set up a public competitive contract auction. Ontario based Trojan Technologies won the contract.The facility treats 2.2 billion U.S. gallons (8.3 billion liters) of water per day. The new facility was originally set to be in operation by the end of 2012. The facility opened on October 8, 2013.