Tomb sweeping day in Xi'an, China. Tomb sweeping day is a national holiday where people travel to their hometowns and clean up their ancestor's graves. They also burn things that they want to give to the ancestors to use in the afterlife. A lot of play money (and some real money) gets burned. This was a Taoist temple in the center of Xi'an. Tomb sweeping day was also a big day at the various religious sites.