Hannibal is home to historic homes, river trips and cave adventures all in the name of Mark Twain. Go on cave adventures in the very place Mark Twain wrote about in five books. Tour one of Hannibal’s most historic homes (where Twain grew up). Shop the streets he roamed as a youth, go on river trips down the Mississippi, which he loved, and spend time on the lake named in his honor. You can do all that and stop by the cabin where he was born in this region of Missouri.