educational services, namely providing preschool through secondary school education services; graduate school services in the field of fine arts and architecture; boarding school services; science institute services, namely providing courses of instruction in science and technology and the operation of a science and natural history museum; providing instructions in the arts through the operation of a museum featuring contemporary art, lectures, and film; conducting educational tours of the buildings, gardens, and facilities which have fine arts and architectural significance, and entertainment services in the nature of theater productions