The geography changed when we crossed the Texas/Louisiana border. We crossed through Cajun country and bayou areas. Some houses are built up off the ground and Interstate 10 is one long bridge over a water basin area.
Baton Rouge was a nice, clean impressive city. We toured the old Historic State Capitol and the new State Capitol. Lots of history and it was all free to tour - including the ride to the 27th floor of the new Capitol which had awesome views of the Mississippi and area.
We stayed at the Comfort Suites in Port Allen on the west side of the Mississippi. Baton Rouge is on the east side. It was very handy to Highway 1, the Plantation Road, which we travelled the next day.