In the summer of 2019, Eric Salitsky researched the global phenomenon of multifaith worship spaces by traveling to various cities throughout the U.S. and Europe to study and photograph this unique architectural typology. He visited more than 50 sites in New York, Boston, London, Manchester, Zurich, and Berlin to document the various ways that designers and facility administrators address the inherent challenges of accommodating the prayer needs of various religions in a single space.