Where: Aboard the Queen of the Mississippi
Earn your stamp: Ride along the Mississippi River on a Mark Twain tribute cruise, stopping in towns that inspired his writings. Dig in to the second volume of the Autobiography of Mark Twain, out this year.
When to go: Seven-night paddlewheel cruises embark August 3 and 17 from St. Louis.
Plan it now: From $3,995 per person with meals, tours, and anthology of Twain books. americancruiselines.com