Find great value on Frontier Airlines flights from DEN to DSM when you book with CheapOair! Known as agricultural powerhouse and a prominent centre of the insurance industry, Des Moines is a scintillating destination to explore. It is the capital of Lowa that is housed in the western region of the American Midwest. Des Moines has plethora of attractions under its sleeve. Get to know about the history and development at the State Historical Museum of Iowa. From historical documents to exhibits, there is so much to see and explore here. Spread across 14 acres, the Greater Des Moines Botanical Garden is very popular among nature and plant lovers. It is home to over 1,200 different species from around the world. The outdoor garden is designed by the Chicago-based landscape architect Doug Hoerr. Entrance garden, rose garden, and maple alle are the major highlights of this botanical garden.