The majestic landscape paintings of the 19th-century Hudson River School include symbolic images of the wilderness painted while America pursued its "manifest destiny" to expand westward. After a renovation of its Huntington Galleries, Connecticut's Wadsworth Atheneum is displaying its knock-out collection of works by Hudson River School painters such as Albert Bierstadt who so expertly captured the dramatic scenery of California's then little-known Yosemite...