ECHO Lake Aquarium and Science Center, Burlington, Vt.

Founded in 2003, ECHO Lake is a 36,000-square-foot facility with interactive exhibits and programs featuring more than 70 species of fish, amphibians, invertebrates, and reptiles. Exhibits include Frog World with 15 different species from six countries, Into the Lake, which explores the history and current world of Lake Champlain, and Indigenous Expressions, which provides a look at the people who have lived in this region through exhibits, films, and artifacts.