Drottningholm Palace is located on the island of Lovön in the eastern suburbs of Stockholm. This palace is the official private residence of the Swedish royal family. It was built at the end of the 16th century, but at the end of 1661, it burned to the ground. The following year, reconstruction began and was completed in the 1680s. Drottningholm Palace was used as a summer residence of the royal court during most of the 18th century. During this century, the Chinese Pavilion, Drottningholm Palace Theater, and the palace church were added to the complex. At its 15th session, UNESCO placed Drottningholm Palace on the World Heritage Sites list.