I'll take a minute to plug New Orleans.
New Orleans was founded in 1718, and much of the city developed before cars were an option. Neighborhoods are dense, walkable, and bikeable; there are tons of bike lanes, and a lot of folks bike around. Or take the streetcar. More of my friends have cars than don't have cars, but you definitely don't need a car if you don't want one.
For those who like "culture," New Orleans has many amenities befitting an older city: a beautiful zoo, a nice aquarium, etc. The city is popular with artists, and there is a good local art scene. It always has been: Edgar Degas lived here for a while, his mother was from New Orleans. For art fans, there is the New Orleans Museum of Art and the Ogden Museum, among others, and countless art galleries. For music fans, jazz was invented in New Orleans, and there are many jazz clubs and places to go listen to brass bands. For history fans, there is the Civil War Museum and the National World War II Museum, among countless actual sites of historical significance. Granulated sugar was invented in New Orleans (you're welcome, world).
For those who like sports, New Orleans has an NFL football team and an NBA basketball team. It annually hosts a PGA golf tour event (currently called the "Zurich Classic" after the Zurich insurance company). The Fair Grounds is a beautiful horse track in the middle of the city which annually hosts the Louisiana Derby. New Orleans also annually hosts the Sugar Bowl (a top tier college bowl game), and commonly hosts Super Bowls, Final Fours, and other major sporting events.
The food in New Orleans is world class. As good as anywhere, and much better than most places.
And then there are the festivals. Most folks have heard of Mardi Gras, the culmination of carnival season, but there are more festivals in New Orleans than you could attend. It's a great town.