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The Peterhof Palace (Петерго́ф) is a series of palaces and gardens located in Saint Petersburg, Russia, laid out on the orders of Peter the Great. These Palaces and gardens are sometimes referred as the "Russian Versailles". The palace-ensemble along with the city center is recognized as a UNESCO World Heritage Site.

The Grand Cascade is modelled on one constructed for Louis XIV at his Château de Marly, which is likewise memorialised in one of the park's outbuildings. At the centre of the cascade is an artificial grotto with two stories, faced inside and out with hewn brown stone. It currently contains a modest museum of the fountains' history. One of the exhibits is a table carrying a bowl of (artificial) fruit, a replica of a similar table built under Peter's direction. The table is rigged with jets of water that soak visitors when they reach for the fruit, a feature from Mannerist gardens that remained popular in Germany. The grotto is connected to the palace above and behind by a hidden corridor.

The fountains of the Grand Cascade are located below the grotto and on either side of it. Their waters flow into a semicircular pool, the terminus of the fountain-lined Sea Channel. In the 1730s, the large Samson Fountain was placed in this pool. It depicts the moment when Samson tears open the jaws of a lion, representing Russia's victory over Sweden in the Great Northern War, and is doubly symbolic. The lion is an element of the Swedish coat of arms, and one of the great victories of the war was won on St Samson's Day. From the lion's mouth shoots a 20-metre-high vertical jet of water, the highest in all of Peterhof. This masterpiece by Mikhail Kozlovsky was looted by the invading Germans during the Second World War; see History below. A replica of the statue was installed in 1947.