The gallery, a rarity among American art museums, has been years in the making but comes at a heavy moment.

Angelika Kauffmann was an Austrian painter best known for her Neoclassical portraits of 18th-century British high society and historical paintings. Born on October 30, 1741 in Graubünden, Switzerland, ...

Through his work, Kaufmann transformed the dam’s utilitarian concrete surfaces into modern art deco designs. Recognizing that the dam’s broad, curving, downstream face was its dominant feature ...