Frederick's oldest standing house, one of America's finest examples of German Colonial architecture, is listed on the National Register of Historic Places. Built in 1756 by the Brunner family, who named it for their homeland in Germany, it has stone walls more than 2 feet thick, hand-hewn beams of native oak pinned together with wooden pegs, a vaulted cellar and "wishbone" chimney, and a perfectly preserved five-plate jamb stove -- the only one left in the world. Guided tours are given throughout the day. Special events include Oktoberfest and Spirit tours offered Friday evenings by reservation.