Atlas Obscura is one of the largest, most well-known and most impeccably awesome archives of amazing places, foods and experiences in the world.
Here is their list of places to see in the Show Me State, Missouri! From a 55,000 square foot "city" underneath Kansas City, to a drive-thru golf-cart bar in a bat-filled cave on top of a mountain, to the world's largest manmade underground caverns, to a museum of antiquated and modern ways of dealing with mental illness, Missouri is filled to the brim with awe! How many of these totally tubular places have you been to?
Note: Some of these you cannot visit or see anymore, which have been marked with (Permanently Closed). So therefore, if you haven't already seen them, I don't know if you'll ever be able to completely finish this list.
Note 2: This is as of December 26, 2023. Sorry future people, there will definitely be more that can't be added.