America's Stonehenge
America's Stonehenge, 105 Haverhill Rd, Salem, NH 03079, USA
About
A 4,000-year-old (allegedly) maze of stone chambers, walls, and astronomical markers in the woods of southern NH. Nobody can fully agree on who built it or why, which is honestly most of the fun. The self-guided trail is under a mile, kids can walk through and into the chambers, and there's a pack of alpacas at the end. Bring serious bug spray in summer.