Date of discovery: March 2015
Location of discovery: Dionysius crater, Earths Moon
NASA Source: http://wms.lroc.asu.edu/lroc_browse/view/M137434784
This is one amazing discovery by Streetcap1 of Youtube. So much so I had to have a close look at it myself. Yeah, I had to stick my nose in it, but what I came away with was very interesting. Look carefully at the screenshots below. In them you will see structures, windows, alien ships and entrances that look like faces, but its open mouth is the doorway. SCW
Face above, strange structure below.
Look carefully at the photo below. There are towers and castle like structures!
Below is an alien ship that is landed near the edge.