BIOSPHERE TOURS #2 by storm — “tours in a human experiment: biosphere 2, 32540 s. biosphere road, oracle, AZ directions: from tucson, take oracle road (highway 77) for about 30 miles and turn right at the sign. hours: 9 a.m.-4 p.m. daily” Share this:TwitterFacebookRedditLike this:Like Loading... Related 08.16.2014 – biosphere / architecture photography / Arizona / BIOSPHERE 1993 / nature tourism / photography