Revendreth is similar to Nazjatar in that it has several vertical layers that make a small zone end up pretty big for exploration. In this case, there are paths along the mountain that lead you to several layers of land, as well as stairs and elevators.
Then there is the lower areas of the zone with all kinds of beasts and creatures lurking in the river banks — if we can call it rivers.
There is a massive bridge of blood being funneled from the Sanguine Depths dungeon in Revendreth to The Maw.
Revendreth is a level 57-60 zone. Below you can take a look at some of my screenshots. The video is being uploaded. Follow @blizzplanetcom for updates when it is available. ETA 2am (more or less — US East)