online exhibit on the early Americas

This new online exhibition at the Library of Congress is unusually good both technically and aesthetically:
Exploring the Early Americas - Exhibits (Library of Congress):

Exploring the Early Americas features selections from the more than 3,000 rare maps, documents, paintings, prints, and artifacts that make up the Jay I. Kislak Collection at the Library of Congress. It provides insight into indigenous cultures, the drama of the encounters between Native Americans and European explorers and settlers, and the pivotal changes caused by the meeting of the American and European worlds. The exhibition includes two extraordinary maps by Martin Waldseemüller created in 1507 and 1516, which depict a world enlarged by the presence of the Western Hemisphere.

Note: I'm trying out three new Firefox extensions: Deepest Sender, Copy Plain Text, and Copy as HTML Link. I found them on Lifehack.org.