Potential Districts

This is a spatial dataset of record for the storage, maintenance, and display of historically significant structures within the District of Columbia for planning and management purposes.本数据集为备案型空间数据集（spatial dataset），用于对哥伦比亚特区（District of Columbia）范围内具有历史意义的建构筑物开展存储、维护与展示工作，以支撑规划与管理相关事务。