| Name | Permafrost Tunnel |
| Address | Fairbanks, Alaska |
| Date | 0000-00-00 |
| Time | 00:00:00 |
| Category | unknown |
| Description | This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.... |
| Coordinates | 64.95110, -147.62450 |
| Web address | /places/permafrost-tunnel |