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Photo: Viscountrapier at English Wikipedia, Public domain via Wikimedia Commons
University whose campus includes several former estates, including the de Seversky Mansion once owned by Alfred I. du Pont, and several buildings from the C. V. Whitey estate
The New York Institute of Technology is a private research university with two main campuses in New York, one in Old Westbury, on Long Island, and one on the Upper West Side in Manhattan. The university was founded in 1955. In addition to its main campuses, it has a cybersecurity research lab, a biosciences and bioengineering lab, Nassau County's first Class 10,000 clean room for nanoengineering, and the Entrepreneurship and Technology Innovation Center, which has close links to NASA, in Old Westbury, as well as campuses in Arkansas, China, and Canada. The U.S. Department of Defense and the U.S. Department of Homeland Security designated NYIT as a National Center of Academic Excellence in Cyber Defense Education.
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C.W. Post Campus of Long Island University
A university built around Hillwood, the former estate of C. W. Post of breakfast cereal fame
Sea Cliff's museum, located in the same complex as the Village Hall and Library, which used to be a Methodist Church
Sea Cliff is famous for its concentration of late 19th-century Victorian houses, many of which are listed on the National Register of Historic Places. Most of the houses are on or within a block of Sea Cliff Avenue or Prospect Avenue. These are privately-owned houses with people living in them, so don't gawk for too long!
Garvies Point Museum and Preserve is a center for research on Long Island geology and a valued resource in the study of the Island's Native American archaeology. This museum has many trails you can walk through as well at the preserve. Birthday parties and different types of workshops are offered as well. You can find more information on the website on planning events.
Estate and home of industrialist Harold I. Pratt, now a county park with woodland trails and a beach. The mansion itself is now the Nassau County Holocaust Museum.
Small college specializing in naval architecture and marine engineering. Its grounds are the former home of industrialist Herbert L. Pratt, known as "The Braes", and its main building is Pratt's 1914 mansion.