But on Thursday, it reopened to the public with a new exhibit - the new 'Light Towers' exhibit by acclaimed British artist Bruce Munro.
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It celebrates Paso Robles' wine country with 69 towers made from 17,000 wine bottles.
They're illuminated with optic fibers whose colors morph to a custom musical score.
This is in addition to Munro's 'Field of Light' using more than 58,000 stemmed spheres with fiber optics lighting up the landscape in blooms of color.
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It's all powered entirely by solar energy.
The expanded 15-acre walk-through exhibit will be open through September 30th.
WATCH | Magical Field of Light in Paso Robles
Magical Field of Light in Paso Robles