A friend and teacher of mine went to Korea for a pottery thing. Here's one wood pile for firing one of those giant kilns. I guess the guy (Cheon Han Bong- a UNESCO Intangible Cultural Treasure) has more than one pile like this, and spared no expense on the shed too. Hand made pottery is big bizz in Asia- this guy gets ~$5k for a single tea bowl. Notice that it's 15-20' tall, and apparently freestanding. Dudes knew what they were doing stacking this. I imagine that he loses a couple assistants a year in crushing deaths.