Board a unique open-air bus to discover the best of this amazing city, with breathtaking views of the modern energy capital of the world. Houston is the largest city in the south and it offers its visitors a great variety of attractions, magnificent architecture, historic places, and landmarks. See many of these on this remarkable tour. Tours start every morning from the Texan Cowboy-themed Visitors Center. In addition, receive your tickets to the Downtown Aquarium so that you can discover an amazing collection of marine life, exhibits, rides, and attractions.