| Name | Ruins of the McMillan Sand Filtration Site |
| Address | 1st Street NW and Channing Street NW, Washington, District of Columbia, United States |
| Date | 0000-00-00 |
| Time | 00:00:00 |
| Category | unknown |
| Description | An Industrial Revolution-era public work that purified water using nothing but sand.... |
| Coordinates | 38.92460, -77.01060 |
| Web address | /places/ruins-of-the-mcmillan-sand-filtration-site |