and Tropical Fruit and Spice rooms. Tropical Fruit and Spice Room The Tropical Fruit and Spice Room is located west of the South Conservatory. The room contains tropical and sub-tropical fruits, nuts, and spices such as citrus fruits, bananas, allspice, papayas, cinnamon and coffee. The marble basin in the center of the room features a Dale Chihuly glass sculpture in purple and celadon. Tropical Forest Conservatory The Tropical Forest Conservatory, located south of the South Conservatory, is the largest indoor display area of the conservatory. The room features a different region every three years, and contains man-made waterfalls, winding pathways, a fish pond, and interactive learning stations. it is also the site of many of the public programs and special events at the Conservatory. As of 2015, the region features the Tropical Forest Congo exhibit. The Tropical Forest Conservatory opened on December 6, 2006. The Tropical Forest Conservatory has several interesting features, which make it extremely energy-efficient. It has "earth tubes" running underground to help cool the tropical forest and a solid oxide fuel cell, which efficiently produces 5 kW of electricity from natural gas. In addition, there are computer-controlled shades that block excess sunlight from entering the structure and also help to insulate it at night. The roof is also computer-controlled and many of the glass panes can be opened. History of exhibits: 2006 - Thailand 2009 - Peru 2012 - India 2015 - Congo 2018 - Cuba 2022 - Hawaii Gallery Room The Gallery Room is located east of the South Conservatory. The room contains didactic displays for children, such as the imaginary farmer's market, where children can play and learn about healthy food. In the 1950s and 1960s, the room was known as the Modern Room, and featured contemporary room and garden scenes. Sunken Garden The Sunken Garden is located east of the Palm Court, connecting it to the Victoria Room. The room is furnished with fountains, hanging baskets, and sunken beds. The plants in the room vary with season. The room has changed several times over the decades. It has been known, at different times, as the Cascade Garden featuring a modern cascading waterfall; the Charleston Garden featuring an antebellum-themed display with a Southern mansion façade; and, more recently, a Japanese-style garden. Desert Room The Desert Room is located south of the Sunken Garden. The room contains plant life that thrive in a desert climate, such