View of the grand plaza of the Nunnery is where the Uxmal Light and Sound show takes place narrating Mayan civilization stories. View is also toward the ball court and great pyramid The Mexican government in 1927 started to work on Uxmal to prevent further decay. In 1930, Danish explorer Frans Blom led a Tulane University expedition to the site to assist in further preservation of the site. Queen Elizabeth II of the United Kingdom visited on February 27, 1975 for the inauguration of the site’s evening sound & light show.