Above, petroglyphs at Nukhen Utug, Mankhan soum, Khovd province.
When traveling through historical sights in the US, we are accustomed to being fenced off, roped off and warned ('don't touch!') lest we break, ruin or somehow deface places and things of value. Rightly so, the past can at times be fragile and should be protected. That being said, it is somewhat thrilling to encounter ancient rock art and hand-carved monuments bereft of fences, ropes and signs. Indeed, they are just out there in the open, available for photos and moments of quiet contemplation about how these thousands years old objects came to be.