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10 amazing indoor gardens

By: Josh Lew on Sept. 20, 2013, 4:04 p.m.
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Cecil B. Day Butterfly Center, Georgia

The butterfly center is located at Callaway Gardens in Pine Mountain, Ga., about an hour's drive outside of Atlanta. The main attractions here are the colorful butterflies, which fly freely around the glass enclosure.

The center offers classes and materials for gardeners who want to attract butterflies to their own gardens. Callaway Gardens is also home to the Sibley Horticultural Center, which has its own impressive collection of plant life from around the world.

In addition, the butterfly center is also attractive below the surface. It has earned LEED certification for its environmental friendliness and energy-efficiency — which is impressive for a building that must maintain tropical conditions year-round in a temperate climate.