A maze of megalithic chambers and hallways made by man more than 4,000 years ago nestles into the snow- or moss-covered woods at America?s Stonehenge. Guests meander along a trail, marveling at one of the oldest constructions in the United States, complete with inscriptions, eating areas, and evidence of prehistoric art classes. Explorers delve into Stonehenge's history, learning about its use as an accurately aligned astronomical calendar, its role in the Underground Railroad, and the theories about who actually built it. Nearby, eight fuzz balls graze in the alpaca habitat, offering up skeins of yarn spun from their fluffy locks. Winter months coat the site's 105 sprawling acres with crunchy layers of snow, perfect for adventurous snowshoe outings or piggybacking on a snowman.