Complex sentence: The hotel and casino closed on January 9,2006, and the main hotel tower was imploded on May 9,2006 at 2:34am PST in order to prepare the site for Project City Center.
Split into simpler sentences: The hotel and casino closed on January 9,2006. The main hotel tower was imploded on May 9,2006 at 2:34am PST in order to prepare the site for Project City Center.