The complex’s centerpiece is its vast hemispheric temple dome: 125 feet high, 120 feet in diameter and weighing 680 tons. Reputed to be the third largest in the world at the time of construction, the dome required 180,000 feet of lumber and took eleven weeks to assemble. Its outer layer is pre-formed cpper, designed to blend through natural oxidation with the surrounding landscape. During his first visit, Mendelsohn sketched his ideas on a blackboard and immediately won the synagogue building committee’s approval to move ahead. The new Park Synagogue would be one of the architect’s first American synagogue commissions, although he would go on to design several others. In all, four were constructed, all in the Midwest. During the course of synagogue planning, the architect also remodeled much of the interior of Rabbi Cohen’s own home on Euclid Heights Boulevard, to conform with International Style principles. Dedication activities for the as-yet-unfinished project were held in December, 1950. Building activity for the original structure was completed by 1953. Cleveland synagogues