Uranium-235 was discovered by a French-American physicist.
The Western Colorado Botanical Gardens 12 acres -LRB- 49,000 m ² -RRB- are botanical gardens located at the southern end of 7th Street in Grand Junction , Colorado , United States .. United States. United States. Colorado. Colorado. The gardens are public , and financed by admission fees and donations .. Founded in 1994 , The Gardens have been dramatically increasing the size of the facility since 2003 .. The Gardens have reclaimed a downtown site previously filled with thousands of used tires , junk car parts , and dead batteries .. The debris has been replaced with a 4000 square foot -LRB- 370 m ² -RRB- greenhouse and butterfly house , featuring over 600 orchids and other tropical plants from around the world .. A variety of outdoor gardens have been developed and / or planned , including a Cactus and Succulent Garden , Children 's Secret Garden , Harmony In Color Garden , International Garden , Native Garden , Seasonal Xeric Garden , and Sensory Garden .. Cactus. Cactus. Succulent. Succulent. The Native Garden is a miniature replica of Colorado 's Grand Valley , including the Grand Mesa , the Colorado National Monument and Mount Garfield , with plantings related to the 13 geological zones of Western Colorado .. Colorado. Colorado. Grand Valley. Grand Valley ( Colorado-Utah ). Grand Mesa. Grand Mesa. Colorado National Monument. Colorado National Monument. The Cactus and Succulent Garden displays native cactus species , as well as other cold-hardy cactus and succulent plants .. Cactus. Cactus. Succulent. Succulent