symbols, including monuments, oversees military cemeteries, or coins and medals produced by the united states mint. these need to be worthy representations of our nation and our civic ideals. the commission has been active the engaged in realizing the full potential of the mall as the nation's public ceremonial space as envisioned in the mcmillan plan of 1902. they've reviewed construction on the mall since 1910, including playing a key role in the design of the lincoln memorial almost 100 years ago. most recently he had additions at or near the landscape. in addition, the commission contributes an important voice in improving design for many operational elements added to national mall sites. these include security plans for the lincoln, washington, jefferson memorials, and smithsonian institution museums, the design of the potomac park levee at 17th street northwest, and a current reconstruction of the reflecting pool and mall lawn panels. in its active role, the commission also worked closely with many public and private organizations having an interest in the mall. the commission has cooperated