Historic Two Trees Farm

Bridgehampton, N.Y.
Listing price: $75 million

This 115-acre equestrian estate, host to Mercedes Benz Polo Challenges, has 900 ft. of waterfront along Long Pond and more than 60 acres of agricultural reserves. The working horse farm in affluent Suffolk County includes three barns plus eight grooms' apartments with full kitchens and baths, 100 stalls, two indoor arenas, two storage facilities, paddocks, and two polo fields. The historic primary residence is fully renovated and has four bedrooms, three-and-a-half baths, and four fireplaces. Outside are an in-ground pool and tennis court. The second full-residence has four bedrooms and two baths.