From your link:
They have been building these 129 bases day and night, unceasingly, since the early 1940′s. Some of them were built even earlier than that. These bases are basically large cities underground connected by high-speed magneto-leviton trains that have speeds up to Mach 2. Several books have been written about this activity.
While that would be ultra-cool and I’m sure those books have been written, I remain somewhat skeptical.