First, this isn't a tourist attraction, so grumpy people hoping for air conditioning should take a pass. This is a stop for thoughtful people interested in aesthetics, art, architecture and intentional communities. If that's you, stop for a tour, visit the gallery, buy a beautiful bell (makes a unique gift), or stay for a night in the Sky Suite (the other accommodations are doable but rough).
Research your visit on their website first - that's the best way to know what to expect and how to get the most from any time at Arcosanti. They host concerts and other events at times - a perfect way to experience the place.
Soleri was with Frank Lloyd Wright at Taliesen West before striking out on his own. Those familiar with Wright's organic forms will see echoes here. They're constantly building, so parts of the grounds are literally a construction site (greenhouses in the works when I was there).
I stayed 2 nights and ate great food in the communal dining room. And for being relatively off the grid, the wifi was just fine.
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