Hellbrunn Palace is a Baroque villa and pleasure palace located in Salzburg, Austria. It was built in the early 17th century by Prince-Archbishop Markus Sittikus von Hohenems as a summer residence and a place for entertainment. The palace was designed by the famous Italian architect Santino Solari and features a magnificent garden that includes various fountains, grottos, and water-powered mechanical theaters.

The most notable feature of Hellbrunn Palace is its unique trick fountains, which were designed to entertain and surprise guests. The trick fountains are operated by hidden hydraulic devices that spray water at unsuspecting visitors from unexpected places such as benches, trees, and statues. There are also musical fountains that play various tunes while spraying water, and a famous mechanical theater that depicts mythological scenes with moving figures powered by water.

Apart from the trick fountains and garden, Hellbrunn Palace also features a beautiful interior with richly decorated rooms and halls. The palace was used for various events and celebrations, including banquets, concerts, and theater performances.

Today, Hellbrunn Palace is open to the public and is a popular tourist destination in Salzburg. Visitors can take a guided tour of the palace and garden, which includes a demonstration of the trick fountains. The palace also hosts various cultural events throughout the year, such as the Salzburg Palace Concerts, which feature classical music performances in the palace's beautiful Marble Hall.