This 555-acre park is Vermont's only national park and the nation's first to focus on conserving natural resources. The pristine and stunning park includes Frederick Billings's mansion, gardens, and carriage roads. The entire property was the gift of Laurance S. Rockefeller, who lived here with his late wife, Mary, Billings's granddaughter. You can learn more at the visitor center, tour the residential complex with a guide every hour on the hour, and explore the 20 miles of trails and old carriage roads that climb Mt. Tom.