Plantation on the James River. Berkeley is the most historic plantation on the James River. Visit the site of the first official Thanksgiving (1619), as well as the birthplace of Benjamin Harrison and President William Henry Harrison, our 9th president. Taps was composed here (1862) at the Civil War headquarters of General McClellan. Enjoy the 1726 mansion, an architectural gem with exceptional antiques. Five terraces of restored boxwood and flowered gardens offer breathtaking vistas of the James River. Costumed guides, museum and gift shop. Hours: Open daily from 9 a.m. to 5 p.m. Closed on Christmas & Thanksgiving.