I have visited this zoo as a child, 20 years ago w...

I have visited this zoo as a child, 20 years ago with my children, and again yesterday with my grandchild. It is well organized, has clean restrooms, friendly staff, and nice exhibits. Notably most of the viewing areas are shady with the exhibits in full sun. This enhances viewing while keeping people out of the Houston sun. Also notable is the city (and all it's city sounds) seems to disappear once you enter the park.