The oldest zoo in Texas, the Fort Worth Zoo one of the most popular attractions in the Dallas/Fort Worth area. The Zoo has been ranked the no. 5 zoo in the nation by USA Travel Guide, a top zoo by Family Life magazine, the Los Angeles Times and USA Today, one of the top zoo's in the South by Southern Living Reader's Choice Awards, and named the number one attraction in the Dallas/ Fort Worth Metroplex by Zagat Survey U.S. Family Travel Guide.  Tickets expire April 15, 2011.  Not valid at special events.