An ancient ruined city found on Mars

On October 2016, an ufologist has discovered an ancient ruined city on the planet Mars. What is it?

The researcher Scott C. Waring explains:

This is an important discovery by Mister Enigma of Youtube. Its an ancient city in the far distant mountain top area. Cities on Earth were often built in higher locations like this too give the city and advantage if it was attacked. It also give such advantages as a better view, safe from floods, and all those approaching the city will see it from a distance making it intimidating, but then again, they are an alien species and their reasoning and way of thing may be very different from our own.

Mister Enigma states:

An alleged alien city has been discovered on the red planet Mars. But is it the real deal?