Book Igloo - Home is a recent sculptural installation by Colombian artist Miler Lagos. The piece was constructed at MagnanMetz Gallery late last year using carefully stacked books to create a compact dome that is entirely self-supporting.
Sky Garden House by Guz Architects. Wierd, but I think it would be really nice to inhabit. It's also an interesting application of green roofs/roof gardens to a very modern, otherwise steel and concrete design.