Here are the most famous monuments of the bygone era. Many people, including paranormal investigators say that these structures are involved with strange beings who came from other planets. Of course, most of these states does not withstand scientific criticism, but some have no clear explanation.
For example “Indian Chief” located in Alberta, Canada, there is a huge image of the head of an Indian with something that resembles a headset music player. This rare figure can be found in Google Earth coordinates 500’38.20 ‘north latitude and 1106’48.32’ west longitude. It’s a huge geomorphological occurred almost without human intervention. The headset is a path to an oil that appeared here recently.
There are many other strange cases scattered throughout the world. Below you will see some images, traces of aliens.