In this Aug. 14, 2011 photo, Israelis participate in a speed dating event on the eve of Tu Be'Av, the Jewish holiday of love, in Zedekiah's Cave, also known as Solomon's Quarries, under Jerusalem's Old City. Hoping the exotic setting would provide a conducive backdrop for romance, organizers brought 70 Israeli singles to the subterranean quarry late Sunday for the unique speed-dating marathon to mark the 15th day of the Hebrew month of Av, the Jewish holiday of love. (AP Photo/Sebastian Scheiner)