Escape winter's cold or revel in summer sunshine inside this huge "landscape art under glass" structure, which houses tropical palms, spiny cacti, and showy blooms. A children's garden has climbable leaf sculptures and a tube slide that winds through trees. The "Sugar from the Sun" exhibit focuses on the elements of photosynthesis—sunlight, air, water, and sugar—in a full-sensory environment filled with spewing steam, trickling water, and chirping sounds. Don't miss the historic Jens Jensen–designed Fern Room with its lagoon, waterfalls, and profusion of ferns. On-site events include botanical-themed fashion shows, seasonal flower shows, and great educational programing.