posted on Jun, 21 2008 @ 09:47 PM
These dont look like caves they look like sewage tunnels. From the bricking the tunnels seem to be made after the 1800s. moscow is located in the
basin of the Volga, Oka, Klyazma, and Moscow rivers which from my knowledge rules out natural caves. also most natural caves were formed thousands of
years ago when the ocean covered most of the land masses. caves form when there is an over abundance if salt and other minerals in the ocean which
caused the salt to sink and after many years it layers and compacts forming limestone deposits. then when the land masses rose above the water is when
the caves started to form. from what i can tell these "caves" are not limestone. I think alls they are is sewage tunnels.