Yes, you heard it right. Mud volcanoes. Rather than mountains that spew lava, these are often quaintly loveable little pools and nozzles barely 2m high, which bubble and burp gasses and send forth gobs of cold mud. Around a third of all the world’s mud volcanoes are in Azerbaijan, and while, they aren’t especially dramatic, their lonely locations and the sheer curiosity of their existence proves an attraction. A famous group is 10km from Gobustan, around an hour’s drive from Baku.