The game «Topographic Invisibility» was launched, devoted to the 80th anniversary of the Samarkand water reservoir on October 14, 2019. This is a fundamentally new format of collective pastime, the first entertainment in the city for lovers of intellectual leisure. To participate in this game you need to assemble a team of 4-6 people. Players need to identify objects on the map of the Samarkand water reservoir, spending only two minutes on each object. Players can use exhibits as a hints. The winner will be the team that first filled the lake map correctly. The aims of these game are to develop interest in the history of the native land, to fortify the team spirit and to popularize intellectual leisure. The first participants in the game «Topographic Invisibility» were the teams of the «Shanyrak» volunteer center.