Chicago Botanic Garden

https://www.chicagobotanic.org/

We cultivate the power of plants to sustain and enrich life. The Chicago Botanic Garden is one of the world's great living museums and conservation science centers. Every year, more than one million people visit the Garden's 27 gardens and four natural areas, uniquely situated on 385 acres on and around nine islands, with six miles of lake shoreline. The Garden also has a renowned Bonsai Collection.