| Name | I-19, America's Only Metric Interstate |
| Address | Interstate 19, Green Valley, Arizona, 85622, United States |
| Date | 0000-00-00 |
| Time | 00:00:00 |
| Category | unknown |
| Description | After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.... |
| Coordinates | 31.77380, -111.03150 |
| Web address | /places/i19-americas-only-metric-interstate |