You can watch our interview here: https://www.youtube.com/watch?v=YDgPNrJ_2Nc&feature=youtu.be
Lama Glenn Mullin talks about Tibetan Art and the depth of what it meant in Old Tibet to be an artist, Sky Burials and Power Places (man made and those that exist without humans creating it.) You can read about Lama Glenn Mullin on Wikipedia here: https://en.wikipedia.org/wiki/Glenn_H._Mullin
Along with Wikipedia's bio of Glenn, he has long been invited by one of my teachers Gelek Rimpoche, founder of www.jewelheart.org to teach and this is an invitation GR only extended to Teachers whom he trusted deeply.
Be sure to check out Glenn's website www.GlennMullin.com and purchase some of his books to benefit from his unusual depth of knowledge (for a Westerner) of Tibetan Buddhism.