You will love the Arkansas Air Museum in Fayetteville used during the 1920s and 30s racing planes, biplanes, and information on the history of flying. You will come to know that the building inhousing the museum is a 1940s era aircraft hangar.
You will find here in the city the Mammoth Spring State Park inhousing one of the largest springs in the USA. It will interest you to know that water flow is nearly 9 million gallons per hour along with the promptbuscharters.com
Crater of Diamonds State Park, as you will find, is the sole natural diamonds in the US open to the public. It will interest you to know that from 1906 nearly 70,000 diamonds have been uncovered including the Wagner Diamond.