Tail of the whale

In the grand Hintze Hall of the Natural History Museum in London, UK, a skeleton named Hope soars overhead—a blue whale caught mid-dive above the heads of awestruck visitors. As we mark International Museum Day, there's no better time to celebrate our world's repositories of history, art, and science. The event emphasizes the importance of museums as a means of cultural exchange, the development of mutual understanding, and cooperation among people.
© Bailey-Cooper Photography/Alamy