| Name | Kronshtadt Sea Gauge |
| Address | 1 Makarovskaya Ulitsa, Kronshtadt, Russia |
| Date | 0000-00-00 |
| Time | 00:00:00 |
| Category | unknown |
| Description | This historic system is the zero level benchmark for measuring the depths and altitudes of the Baltic.... |
| Coordinates | 59.98930, 29.76240 |
| Web address | /places/kronshtadt-seagauge |