Thisepisodeexploresthemostbizarrearchitecturesontheplanet,includingtheworld'stallestfamilyhome,amodernNoahArk,afarmthatfloatsontheocean,agiantsandcastleandarotatinghouse.ThehostmeetssomescientistswhopretendtheyliveonMarsandvisitsthespectacularmansionoftheworld'srichestkid.