Being the 4th most populous city in the country, Houston offers a good range of activities for you to stick around for more than just one day. When taking a trip here, you can’t miss out on investigating NASA facilities, having authentic Southern meals served by restaurants that take hospitality seriously, and driving down to Galveston Island for a day trip. To manage to do it all, you’ll need around 3-4 jam-packed days or a week when you can take it slow.