[Illustration: One of the several boat landings along the San Antonio River. Many of the buildings bordering the river have overhanging balconies and a few street level business houses can be reached from river bank entrances.] [Illustration: The Arneson River Theatre, a unique outdoor playhouse, can be reached through this Villita Street entrance which adjoins the Cos House, as well as from the river walks. Seen through the arch is a portion of the stage.] [Illustration: From the Villita Art Gallery grounds a portion of the Arneson River Theatre stage with the permanent back drop of a mission type building and bell arches, can be seen at the right.] [Illustration: Tiers of grass-covered seats accommodating nearly a thousand people form the seating arrangement of the Arneson River Theatre.] [Illustration: The Municipal Auditorium, built as a memorial to the World War dead, has a seating capacity of over 6,000.] [Illustration: The little Block House pictured here was built in 1862 as a defense against the Indians. It is located in San Pedro Park, an old council ground of the Indians.] [Illustration: The Pioneers’-Trail Drivers’ Memorial in Brackenridge Park has many interesting exhibits. The Texas Trail Drivers, an association of men who made drives up the early cattle trails, have official headquarters here.] [Illustration: Thomas Jefferson Senior High School, a modern adaptation of Spanish Colonial architecture, is the largest of the city’s several senior schools.] [Illustration: The longhorn, once a familiar sight on the ranges of Texas, have probably made more history than any other breed of cattle. Of Spanish origin, their first appearance in the southwest was probably with Coronado’s expedition in 1541. These big lanky, raw-boned animals, with a horn spread sometimes reaching nine feet, have long since been supplanted by improved beef types. In the Brackenridge Park Zoo can be seen a number of these picturesque animals which have now become somewhat of a curiosity.] [Illustration: In Brackenridge Park Zoo, one of the leading zoological gardens of the nation, an African panorama with natural pits for the animals displays the most important specimens in barless areas.] [Illustration: The Sunken Garden Theatre in Brackenridge Park. Here during the summer in a magnificent setting are presented light operas and concerts.] [Illustration: An abandoned rock quarry was converted into this Japanese Garden.] [Illustration: Within the Quadrangle at Fort Sam Houston is the 88-foot clock tower which, when it was constructed in the late seventies, also served as a watch-tower for the fort.]