f Historic Congressional Cemetery</td>
</tr>
<tr>
<td>Arsenal Monument</td>
<td>Lot Flannery</td>
<td>1865</td>
<td>Congressional Cemetery – NW Section, Range 97, Section 142<br>38°52′53″N 76°58′50″W﻿ / ﻿38.88139°N 76.98056°W</td>
<td>Marble, Granite</td>
<td>Sculpture: 25 ft. × 5 ft. 6 in. × 5 ft. 6 in. Base: 1 ft. 1 in. × 6 ft. × 6 ft.</td>
<td>National Cemetery Administration</td>
</tr>
<tr>
<td>The Progress of Civilization</td>
<td>Thomas Crawford</td>
<td>1859</td>
<td>Unite