ETA: I heard from the OP on reddit! This one id the Mushroom rock (pedestal rock) at Tamanrasset, Sahara of Algeria.
“Hedgehog Rock Formation, Tassili N’Ajjer, Algeria – UNESCO World Heritage Site” I saw a listing wherein this one might also be called Pig Rock, which makes sense.
According to the interwebz via the putrefying and increasingly useless Google, both of these rocks are called Hedgehog, which is patently absurd. It didn’t used to be like this.