For more than 150 years (the longest to continually operate in the world), the New Orleans streetcars have shuttled people around the city. The cars are beautiful—mahogany seats, brass fittings—and slow-moving, making them perfect for seeing a larger swathe of the city with kids. Meanwhile, if you take the Charles Street line, make a pit stop for lunch at Superior Seafood. We've been told that it has a great kids menu (as well as gluten-free options).
Audubon Nature Institute
Zoo: 6500 Magazine St. | Aquarium: 1 Canal St. | Insectarium: 423 Canal St., Uptown
Within the Audubon umbrella there's an aquarium (fish galore, plus a hurricane simulator and dive experience), a zoo (all the standard fare plus a petting zoo, a dinosaur adventure, and a water park), and a butterfly garden and insectarium (Louisiana bugs are stuff of legend). In addition, you'll find an IMAX and a park with tennis, stables, golf, and running paths.