Images of postcards of Unitarian and Universalist church buildings. Churches in the United States, Canada, and Japan are featured; the largest geographical grouping is from Massachusetts. The postcards were produced beginning in 1898. Multiple views and renderings of the same buildings and interior views are included. The description includes architectural features, significant caption information, style and type of postcard, and provenance of the postcard (when available). The names of the images correspond to the names of the congregations whose buildings are depicted. Library of Congress authorized forms have been used whenever possible.