# Biosphere 2

> A sealed glass research complex built around 1990 to test closed ecosystems, now run by the University of Arizona. Visits take you past the rainforest, ocean 

Source: https://camping-spirit.com/places/b18-biosphere-2/

A sealed glass research complex built around 1990 to test closed ecosystems, now run by the University of Arizona. Visits take you past the rainforest, ocean and desert biomes; allow about two hours.

- **Nearest town:** Oracle, AZ
- **Category:** Roadside oddities
- **GPS:** 32.5783, -110.8512

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