This city is very close to where a bunch of "new people" were buried in the Choeung Ek Killing Fields.  
This city became more inhabitable for Europeans with construction projects supervised by Hyun de Verneville.  This city was legendarily founded by a widow who found five statues of a Buddha in the hollowed-out trunk of a koki tree.  This capital received an influx of money from UNTAC personnel in the early 1990s.  The Throne Room of Royal Palace in this city contains a ceiling mural containing scenes from the Reamker national epic.  This city was made the capital after King (*) Norodom moved from Oudong with French protection.  In 2010, over 300 people were killed in this city during a stampede at a festival celebrating the yearly reversal of the Tonle Sap river.  The Tuol Sleng Genocide Museum in this city used to be the site of the S-21 prison.  This city is very close to where a bunch of "new people" were buried in the Choeung Ek Killing Fields.  For 10 points, name this late capital of the Khmer Empire, as well as that of modern-day Cambodia.
This city became more inhabitable for Europeans with construction projects supervised by Hyun de Verneville.  
Phnom Penh (or Panomping)  