More than half the world’s population lives in urban areas, and the United Nations projects that this proportion will reach more than two-thirds by 2050. But do cities make people happy? If so, how? Speakers at the recent conference organized by the Baha’i Chair for World Peace explored how urban infrastructure—from its physical elements such as buildings, highways, or power lines, to intangible ones such as social support, community organizations, or spirituality—affects the future of humanity.