Houston is the largest city in Texas and the fourth most populous city in the nation. It's located just off Trinity Bay and Lake Houston, giving the area a gorgeous, waterfront view. If you're heading to Houston on business or for pleasure, you can take some time to enjoy all this metropolis has to offer. The quickest and most convenient way is by Houston rental car. The city is structured like a big wheel with downtown in the center. Highways branch off to create the spokes, and the Loop Freeway acts as the edge of the wheel. As such, navigating is fairly simple. As you zip around Houston in your rental, make sure to stop at these hot spots.