The Nassau County Museum of Art is located in Roslyn Harbor, New York, and is known for its diverse collection of American art. The museum features works from the 19th century to contemporary pieces, showcasing artists such as Georgia O'Keeffe and Andy Warhol. Set within the scenic Old Westbury Gardens, the museum also hosts rotating exhibitions, educational programs, and community events. Its beautiful grounds and historic mansion provide a picturesque backdrop for visitors to explore art and nature together.