The Glen Cove waterfront home of renowned art collector Marvin Schein was designed in 1928 for transportation magnate Louis Luckenbach and his wife, Kate. The seven-bedroom brick house, which was modeled after a European castle, is situated on almost nine acres, with views of Long Island Sound and a private lake. There are also two cottages and a greenhouse on the property. It is listed at $17.5 million with Daniel Gale Sotheby's International, Locust Valley.