Traces of a Russian hole to hell in the Arctic, a military base in America's wild west, and a strange looming tower are mysterious, deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.
| Hosted by | Submitted by | |
|---|---|---|
| VidSrc | WatchSeries | 3 years |
| dood | fashionable | |
| dood | aaric.shreyan |