If you don't mind being a little daring, there's a hike you can do in Illinois that will take you across one of the most scenic structures in the state. It's a 90 foot stone bridge and there are no railings to hold onto.
There is one Missouri bridge that had so many legends attached to it, it's hard to discern which ones were false while others may have been true. It's the one place in Missouri where demon dogs were said to guard it along with other specters from tragedies past.
It's not April 1, is it? I've confirmed it isn't. The reason I'm checking is Missouri is trying to giveaway a historic bridge. I've confirmed that it isn't April Fool's Day and you really can have it if you want it.