giraffePresident’s Day in Houston means one thing — FREE admission to the Houston Zoo!  With Houston Zoo ticket prices now at $10/adults and $6/kids, this is a great bargain if you’re willing to navigate the huge crowds it attracts.  Zoo hours for free admission on February 16 are 9 a.m. to 6 p.m.  The Houston Zoo is located in Hermann Park near the Texas Medical Center and Museum district.  Contact: 713-533-6500