3. Medieval castle ruins in Lielvārde

^{The Medieval Castle Ruins in Lielvārde are an archeological monument of national significance. The stone castle and rampart was built at the beginning of the 13th century according to German Crusader instructions on the site of the ancient Livonian wooden castle. It was damaged by repeated war activity and was renewed several times, but since 1613, only ruins remain. Preservation of the ruins was managed in 1987 by architect G. Erdmanis.}