Defining Moments

Defining Moments: Capturing our changing world

JULY 22 - LONDON, ENGLAND: Catherine, Duchess of Cambridge and Prince William visit the Sensational Butterflies exhibition at the Natural History Museum in London with their son, Prince George. <a href='http://cnn.com/2014/07/21/world/europe/prince-george-at-one/index.html'>The future king celebrates his first birthday today.</a>

JULY 22 - LONDON, ENGLAND: Catherine, Duchess of Cambridge and Prince William visit the Sensational Butterflies exhibition at the Natural History Museum in London with their son, Prince George. The future king celebrates his first birthday today.