Mordor
Mordor is a terrible place to visit. It may have been an incredibly influential place in history, but now it is nothing but an obsidian wasteland. The only reason you might want to go here is if you want to look at volcano rock, but there's no need because it's quite monotonous: either black and shiny or gray and holey. Mount Doom has cooled down, so there's no lava left to see. The mountains nearby are too steep to climb. This place really is terrible.
Credit: Bitterhand