What is the most culturally unique of the lower 48 states?

[Non Swing Voter]

Louisiana was going to be my response before seeing it listed on the poll.

It has retained so much French culture that it's clearly unique to the South, which is a region that's fairly unique to the rest of the country to begin with, though less so now that it's growing. 

Louisiana's legal system is also the most unique in the country: https://www.bloomlegal.com/blog/what-is-unique-about-louisiana-law/