The first wooden church of Kambja was built probably in the beginning of the 14th century. Churches were destroyed and rebuilt several times during centuries. The present Lutheran St. Martin’s Church was originally rebuilt in 1720, this time of stone and a transept was added to the old part in 1874. After World War II, the church, which is one of the biggest in Southern Estonia, was in ruins for many years until restoration began in 1989. The old bells which were cast in Moscow have survived. A new organ was donated by the Träsiövi congregation of Sweden.
The Château du Haut-Koenigsbourg is situated in a strategic area on a rocky spur overlooking the Upper Rhine Plain, it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German kaiser Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.
The first records of a castle built by the Hohenstaufens date back to 1147. The fortress changed its name to Koenigsburg (royal castle) around 1157. The castle was handed over to the Tiersteins by the Habsburgs following its destruction in 1462. They rebuilt and enlarged it, installing a defensive system designed to withstand artillery fire.
The fortification work accomplished over the 15th century did not suffice to keep the Swedish artillery at bay during the Thirty Years War, and the defences were overrun.