Somewhere in Kansas, a well-traveled man asked me if I was driving long distances to hit the state's biggest attractions. I paused. That wasn't really how I was thinking about this trip at all. As I settled into driving south to north through the plains states, I discovered something. Wonder doesn't actually require huge detours when you travel with the Atlas Obscura app. Wherever I was headed, there was something unexpected and interesting practically underfoot. So I showed him. I pulled up the app right there. “Look. Fifty feet from where we're standing, there's an all-electric house .” And just a few minutes away, a horse graveyard. I had already failed to stop at Mister Ed 's grave in Oklahoma, sorry Mister Ed, so I wasn't going to miss this one. The Lawrin gravesite sits at the end of a quiet residential cul-de-sac in Prairie Village, a tidy suburb of Kansas City. It's tucked behind a black wrought-iron fence on a small, well-tended rectangle of green.…