Dune House (Atlantic Beach/ Florida) Designed by architect William Morgan this building was constructed in 1975 using swimming pool technology, a gunite-concrete shell anchored to a cast concrete floor. It’s also one of the original green roofs, as it’s topped by a mantle of earth stabilized by native landscaping which helps to maintain a 70-degree temperature inside (7 photos).
This gigantic mansion is owned by actress Julia Roberts and it is situated in Malibu, California. The "pretty woman" actress bought this house after earning millions of dollars from different Hollywood movies which she has starred in. The mansion includes a private beach, a gigantic pool and of course a nice sea view.