Butterflies are nature's most docile creatures, yet humans become increasingly jittery when they fly in formation. Keep winged creatures in your line of vision with today's Groupon: for $14, you get admission for four to the Cockrell Butterfly Center exhibit, a part of the Houston Museum of Natural Science (a $32 value). Children two years old and younger are admitted free. This Groupon is valid only for admission to the Cockrell Butterfly Center.

Green Triangle Kite butterflies, Blue & Brown Clippers, and more than 1500 other exotic butterflies caper about in the Cockrell Butterfly Center, sipping nectar and fluttering amid tropical flora. Marvel as exotic arthropods, imported from butterfly farms around the world, zip through the three-story rainforest conservatory anchored by a 50-foot waterfall. In the adjacent Brown Hall of Entomology, visitors can admire mounted specimens, large cockroaches, and giant wasp nests, also known as "grizzly bear bonnets." The learning center also features an entomologist's lab and an unusual vending machine spouting a selection of buggy snacks. The Chrysalis Corner showcases the butterfly's transformation from cocoon to full-winged beauty. Little cherubs can run amok in the Land of Beeyond, an immersive insect environment with a giant beehive, puzzles, and picture books narrated by retired crickets.