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Photo: Invertzoo, CC BY-SA 4.0 via Wikimedia Commons
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.
Welwyn Preserve County Park is a 204-acre (0.83 km2) public nature reserve in Glen Cove, on the North Shore of Long Island in the U.S. state of New York.
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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.
Glen Cove provides a beautiful 18-hole golf course with a beautiful water view. Residents and non-residents may play the course. They have a pro shop on site and a driving range. On site as well is Stanco Park that has tennis courts and a children's playground. There is also a restaurant on the property called Soundview Cafe.
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.
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!
C.W. Post Campus of Long Island University
A university built around Hillwood, the former estate of C. W. Post of breakfast cereal fame