Olbrich Botanical Gardens features 16 acres of outdoor display gardens showcasing the beauty of Midwest hardy plants in a setting of prairie style architecture. Olbrich's Thai Pavilion and Garden, the only one in the continental United States, features an innovative tropical garden in the Midwest. In June, 2005 a new Rose Garden opened to the public with mixed borders of Midwest hardy shrub roses and perennials. The Bolz Conservatory, a sunny 50-foot-high glass pyramid, houses a diverse collection of tropical plants, a rushing waterfall, free-flying birds, and blooming orchids year-round. The Botanical Center is complete with a gift shop, horticultural library, and meeting rooms. Educational classes, programs, and events for adults and children are offered year round.