Entrance to a weird underground base found in Antarctica

On November 18, 2018, a rectangular entrance to a mysterious underground base was found in Antarctica thanks to Google Map.

Scott C. Waring explains:

A rectangle entrance was found in Antarctica using Google Earth free map. The entrance was deliberately made...as you can see from the right angles of the entrance. Also the removed dirt has created a surrounding pile all around it of grey dirt. A color that is not seen on the surface anywhere, but only here. Measuring 9 meters by 16 meters its large enough fly small craft in and out easily. This is an excellent find by UFOmania of Youtube.

UFOmania states:

Exploring the continent of Antarctica using google earth, i came across this perfect rectangular entry for an underground world. Source: Ufomania - The truth is out there via Google earth.

http://www.ufosightingsdaily.com/2018/11/rectangular-entrance-to-underground.html, 18th November 2018