Ērģeme ruins are a national monument of history and archeology. Have been built around the year 1320. The castle is built of the local boulders, bricks and lime mortar. The outer wall of the castle forms a regular quadrilateral, each with a length of 70 meters. The castle is a convent-type castle with two large fortification towers. The castle was surrounded by ditches filled with water. The front with the central part was linked by a lift bridge.
GPS: 57.8127136, 25.8305022