The Futuro House was a short-lived fad during the late 1960s and early 1970s. Okay, maybe it wasn't even a fad, because they only ever built 96 of these things.
With 525 square feet of living space, the Futuro House could supposedly accommodate 8 people, its press releases said. Hmmmm... maybe, but only if you're cozy and unclaustrophobic. These things seem more like children's playhouses to me. While it lacks the size and majesty of Orlando's Spaceship Earth or Sarasota's multi-domed Bishop Nevins Academy, it still possesses a certain space-opera charm.
The official reason given for the failure of Futuro is that the rising price of plastic during the mid-1970s oil crisis made production of the domed domiciles too expensive. Personally, I think the real reason is simply that no one wanted to live in a tiny plastic space pod.
Of the 96 Futuro houses originally sold, Wikipedia estimates only 60% still exist. We're fortunate to have one of them still intact in Pensacola Beach. Of course, you'll notice they aren't using it as a house - they keep it on display on the roof of their house!