The Palace on the Isle (Polish: Pałac na Wodzie) is a beautiful palace located on an artificial island in the middle of a lake in Warsaw, Poland. It was built in the 17th century in Baroque style as a bathhouse and a garden pavilion for King Stanisław August Poniatowski, who transformed the island into a magnificent palace and gardens in the 18th century.

The palace is surrounded by beautiful gardens, fountains, and sculptures. The interior of the palace is decorated with frescoes, paintings, and sculptures by famous artists such as Marcello Bacciarelli, Johann Christian Kamsetzer, and Pompeo Batoni. The palace was used as a royal residence, and it hosted many important events and receptions.

During World War II, the Palace on the Isle was damaged, and most of its art collection was lost or stolen. After the war, it was restored, and the palace and its gardens were opened to the public. Today, the Palace on the Isle is a museum that houses part of the collections of the Royal Castle, including paintings, sculptures, and decorative arts from the 17th and 18th centuries.

The palace is one of the most beautiful and popular tourist attractions in Warsaw, and it is a perfect place for a relaxing walk or picnic in the park. It is a must-visit place for anyone interested in art, history, and architecture.