Siyong Castle is a magnificent medieval water castle in the town of Veytaux near Montreux, Vaud, surrounded by beautiful Lake Geneva and the majestic Albert Mountains, because it is built on the rocks on Lake Geneva, The distant view gives people a strange feeling of floating on the water, so it is called a strange pearl in the history of architecture, and it is also one of the most prestigious monuments in Switzerland, known as the "10 largest castles in Europe" in the folk.