Moroccan riad been bought by foreigners. This foreign interest has brought new challenges but the investment has helped with the restoration of the UNESCO site and has helped revive many of the handcrafts and artisan trades that were gradually being lost before this trend. Many of the restored riads in the districts of Mouassine and Lakssour offer the finest examples of restoration as historically these areas contained many of the grand palaces from Marrakech's Saadian period. Moroccan riad A riad () is a type of traditional Moroccan house or palace with an interior garden or courtyard. The word riad originates from the
Burghley House around the old ice house and, in 2007, a "garden of surprises" was created using traditional ideas of water traps, shell grottos and a mirror maze, but in a 21st-century style. The Burghley House trust has commissioned contemporary artwork in the grounds from leading artists. The parkland and gardens of Burghley House are listed Grade II* on the Register of Historic Parks and Gardens. The house is a Grade I listed building, with separately Grade I listed north courtyard and gate. The site is open to the public. A number of restoration projects are under way. The Lincolnshire county boundary