The Dallas suburb of Irving is home to a very clever sculptural fountain. Designed by Kenyan sculptor Robert Glen and installed in 1984, “Mustangs of Las Colinas” depict a herd of nine bronze mustangs galloping between a river, splashing water. This breathtaking illusion is created by small fountains strategically placed beneath the horses’ hooves, not to mention the lifelike details of the wild animals. The work commemorates the state’s mustangs, who represent the unfettered lifestyle that was fundamental to Texas during its pioneer days. The plaza setting for the sculpture won…