The purposes for which the corporation is organized are: a) to operate exclusively for charitable, educational, scientific or literary purposes within the meaning of section 501(c)(3) of the code, by engaging directly in support of such purposes or by making distributions to other organizations for use, by the distrutees, in support of such purposes; b) to oversee operations and management of historic and architecturally significant landmarks, public parks, and public entertainment venues and related public educational facilities; and c) to engage in ANY and ALL lawful activities incidental to the foregoing purposes, except as otherwise restricted herein. The corporation shall not carry on, other than as an insubstantial part of its activities, activities that are not in furtherance of its purposes.