The Waldo Water Tower has been completely restored, and it looks beautiful.
The park where this historical site is located was the scene of the largest single battle in the Bleeding Kansas phase of American history, when pro- and anti-slavery people flooded into the Kansas Territory ahead of a vote on whether the South's Peculiar Institution would be a part of the future state's legacy. (It was not.) John Brown, later to gain fame for an unsuccessful raid on the US Armory at Harpers Ferry, Virginia before moulderin' in his grave, came as part of that influx of voters, and after the sacking of Lawrence, Kansas by pro-slavery forces, Brown got up a bunch of anti-slavery settlers and retaliated with the Pottawatomie Massacre. The park in Osawatomie contains the cabin of the Adair family, relatives of Brown's. He "hid out" in plain sight there for a couple of years before going on to greater acclaim or notoriety.
The Museum is a room in the offices of Rural Water District #1. It contains movie posters and photographs, along with several cases of memorabilia from the life of the great Comic actor, who was born in the town because the train on which his parents travelled was forced to wait there for a storm to pass.
A good value. Clean, close to good restaurants, inexpensive. Reasonably good wi-fi; plumbing easy to operate (the hot water was a little slow in coming but not unreasonably so). Bed was comfortable & the place was quiet. Total price was $67.
According to the description of Jim Bowie's knife, helpfully posted on a signboard next to this giant knife, this is not a Bowie knife. But let's not quibble: it is a knife, and it's in Bowie, so it IS the Bowie Knife.
It has only about twenty cars on display, about a third of which are Ford Model T's. Notable vehicles on display (they do have others, but space is limited) are a custom-built Cadillac "bus," one of a fleet built for the Broadmoor Hotel; LBJ's 1964 white Lincoln Continental convertible; and a 1939 Alvis, the lone non-American vehicle in the place. Unfortunately, all three rooms have glass walls on one side, which means almost all the cars are so harshly backlit that it's very difficult to get decent pictures (and this on a rainy day). The attendant on duty was personable, and tried to be helpful, but couldn't answer any of my questions. (What was that little crank on the back of the front seat in the Dodge? What is a "pop-out ignition"? What was that gizmo on the spare-tire holder that looks like an over-engineered clamp? What's that little flipper-like knob inside the back doors, but not the front doors, of the Studebaker?) Despite that, I found this museum worth the stop.
You can see it from the highway, and there are plenty of pictures of it available on line. I didn't find it worth the left turn, and I stop for almost anything.
The hole is pretty much filled in. While it used to be 155' deep and 50' long, now it's about 3' deep & filled with sand.
The Roadside America listing for this attraction explains it in some detail, for all of y'all that can't figure it out. https://www.roadsideamerica.com/story/13698
You can't tell from the picture, but the house is built by laying glass bottles on their side in some kind of concrete-like mix.