Smith Hall, opened in 2001, was financed in large part by Holy Cross alumnus Park B. Smith, and is architecturally impressive as it is built into a hillside of the campus.[20] Smith Hall connects the lower campus, where much of the academic life occurs, and the upper campus, where much of the social and residential life takes place on campus due to its design which incorporates Fenwick Hall.[21] A plaza outside Smith Hall, named Memorial Plaza, commemorates seven Holy Cross alumni who perished in the September 11, 2001, attacks.