HANNIBAL, MO. -- Steamboat lovers can get an up close and personal look at a piece of America's riverboat history.

The American Queen steamboat is docked in Hannibal until noon Saturday.

Normally the riverboat cruise ends its trip down the Mississippi River in St. Louis.

But because of a problem with a lock and dam downstream, this trip is ending in Hannibal.

In the meantime, passengers are enjoying their visit to Hannibal ... whose history is tied to the Mississippi.