does it have any palace in it?
Yes, the main palaces are El Badi Palace, the Royal Palace and Bahia Palace.
Marrakesh
The historic wealth of the city is manifested in palaces, mansions and other lavish residences. The main palaces are El Badi Palace, the Royal Palace and Bahia Palace. 
what country casablanca and marrakech are located in Kingdom of Morocco where did the second mentioned place get the name from? One possible origin of the name Marrakesh is from the Berber words "amur and akush", which means "Land of God".
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Marrakesh [SEP] Palaces and Riads
The historic wealth of the city is manifested in palaces, mansions and other lavish residences. The main palaces are El Badi Palace, the Royal Palace and Bahia Palace. "Riads" (Moroccan mansions) are common in Marrakesh. Based on the design of the Roman villa, they are characterized by an open central garden courtyard surrounded by high walls. This construction provided the occupants with privacy and lowered the temperature within the building. Buildings of note inside the Medina are Riad Argana, Riad Obry, Riad Enija, Riad el Mezouar, Riad Frans Ankone, Dar Moussaine, Riad Lotus, Riad Elixir, Riad les Bougainvilliers, Riad Dar Foundouk, Dar Marzotto, Dar Darma, and Riad Pinco Pallino.