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America's Top Roadside Attractions
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  • Road Trips

America's Top Roadside Attractions

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Wendy White / Alamy

Take a detour to these fun and inspirational stops for the entire family.

Biosphere 2Oracle, AZ

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Road: I-40

This massive three-acre greenhouse was built as a research station to simulate the conditions of space colonization. Constructed to be airtight and self-sustaining, Biosphere 2 was the site of a two-year experiment with human “Biosphereans,” which went awry in 1991 when oxygen had to be pumped in, and subjects were sent crucial lifesaving supplies. Now managed by the University of Arizona and home to ongoing global-warming experiments, the self-contained mini-world with several climactic zones, including its own ocean with a coral reef and a rainforest, welcomes visitors.

America's Top Roadside Attractions

Biosphere 2Oracle, AZ

Road: I-40

This massive three-acre greenhouse was built as a research station to simulate the conditions of space colonization. Constructed to be airtight and self-sustaining, Biosphere 2 was the site of a two-year experiment with human “Biosphereans,” which went awry in 1991 when oxygen had to be pumped in, and subjects were sent crucial lifesaving supplies. Now managed by the University of Arizona and home to ongoing global-warming experiments, the self-contained mini-world with several climactic zones, including its own ocean with a coral reef and a rainforest, welcomes visitors.

Wendy White / Alamy
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