Gabriel at the Boston Observatory

(...) In one multimedia exhibit, two rap emcees appear on separate television sets and ask viewers sample questions from the U.S. citizenship test. Siblings Fernando and Jennifer Pena laughed while they watched the video. "If you ask Americans, some of them wouldn't even know the answers to those questions," said Jennifer Pena, who was born in the Dominican Republic.

Among the nearly 30 interactive displays are a short film about refugees narrated by singer Peter Gabriel and the "Wings Over Boston" aerial video tour. But some visitors come to the Skywalk for more than the view or the trivia. (...)