“At a growing number of museums around the country, party nights aimed at younger patrons are bringing in everything from D.J.’s spinning house music to double-Dutch jump-ropers (at the Seattle Art Museum’s Thursday After Hours series, which sometimes lasts until midnight)… Museums have plenty of reason to look for younger crowds. According to a survey sponsored by the National Endowment for the Arts and conducted by the Census Bureau, the median age of Americans who visited art museums rose by five years, from 40 to 45, between 1992 and 2002, reflecting a sharp drop in museum visits by people 18 to 34.”