Explore houston on a hop on hop off sightseeing tour which travels by double decker bus to six stops around the city including historic city hall market square houston heritage society museum of fine arts houston downtown aquarium houston zoo and more enjoy unobstructed views and live onboard commentary and simply hop off at any of the six stops to sightsee in depth experience houstons most noteworthy attractions sights and shopping areas at your own pace with this convenient hop on h