"Located on the edge of Hermann Park, the Houston Museum of Natural Science is one of the most-visited attractions in the Museum District. Its four stories of galleries and halls are grand, both in their scale and their offerings. Make sure to stop by the two-story Morian Hall of Paleontology, which is filled with scientific delights large and small, from massive replicas of prehistoric beasts to fossilized dinosaur poop. In the three-story Cockrell Butterfly Center, which is always kept as humid as a tropical rainforest, you'll squeal with delight when one of the fluttering insects lands on you. At Christmas time, they will feature a Trains over Texas exhibit with model trains that go through the geology of different areas of Texas." - Charu Suri