Best New Jersey Engagement Photographer goes to Allebach Photography. If you are looking for photos at Grounds for Sculpture look no further than Allebach Photography. Contact Grounds for Sculpture Weddings: Grounds For Sculpture is a 42-acre sculpture park and museum located in Hamilton Township, Mercer County, New Jersey, United States, on the former site of the New Jersey State Fairgrounds. Wikipedia Address: 80 Sculptures Way, Hamilton Township, NJ 08619 Founder: John Seward Johnson II This is one of the best places for New Jersey engagement photos!