Be careful if you're planning a quick pit stop in Omaha. Home to the brick-and-cobblestoned Old Market neighborhood, a booming riverfront, a lively music scene and several good museums, this town can turn a few hours into a few days.
Omaha grew to prominence as a transport hub. Its location on the Missouri River and proximity to the Platte River made it an important stop on the Oregon, California and Mormon Trails, and later the Union Pacific Railroad stretched west from here. These days Omaha is in the nation's top 10 for billionaires and Fortune 500 companies per capita. Money pours back into the city in spectacular ways thanks to several wealthy benefactors (including Berkshire Hathaway's Warren Buffett).