Translate picture

Could somebody help me to translate sentence on the picture?

Are these Chinese characters?

For me is hard to recognize but for me it looks like Chinese or Korean(especially 4 character from the top)

Where did you find the characters?

Picture from where I have characters : Imgur: The magic of the Internet

Aren’t they Mongolian scripts?

I compared Mongolian alphabeth and looks very different. I’m quite sure it’s not Mongolian.