Biosphere 2

Biosphere 2

Just north of Tucson, Biosphere 2 is a one-of-a-kind scientific research facility that once served as a closed ecological system experiment. Today, it's a fascinating destination where visitors can explore several replicated biomes including rainforest, ocean, and desert environments—under a massive glass structure. Guided tours offer insights into sustainability, climate change research, and the innovative science being conducted on site.