On one recent visit to this exuberant survey, a group of kindergartners could be seen doing just that under a bright-red cube originally conceived by Tsuruko Yamazaki for an outdoor festival in 1956, and reconstructed here.
Built in 1800, Hank McNeil's Neo-Georgian 13, 000-square-foot Rittenhouse Square mansion is red brick and cube-shaped, with rectangular double-hung windows all aligned and a red front door flanked by Corinthian columns.