列了一下还没去过的州以及我目前觉得可能值得去的地方/理由（顺序大致按照兴趣，部分地理位置相近的可能因为思维惯性会放在一起），希望大家补充，尤其是几个我完全不知道有什么值得去的地方的州。谢谢！
- South Dakota (Mount Rushmore, Badland, Wind Cave)
- North Dakota (Theodore Roosevelt NP)
- Minnesota (Voyageurs NP)
- Wisconsin (Milwaukee)
- Michigan (Detroit, Gold Coast)
- Alabama (Civil Rights)
- Mississippi (Elvis Presley, Natchez)
- Missouri (The Arch!)
- Arkansas (Civil Rights)
- Idaho ( ̶P̶o̶t̶a̶t̶o̶e̶s̶ Waterfalls, Boise)
- Kansas (Jazz)
- Oklahoma (Route 66)
- Ohio (Cincinnati)
- Indiana (Indiana Dunes National Park)
- Nebraska (no idea)
- West Virginia ( ̶C̶a̶n̶n̶i̶b̶a̶l̶ ̶f̶a̶m̶i̶l̶y̶ no idea)
- Iowa (no idea)
