Diana married Prince Charles on July 29, 1981.
The wedding was watched by more than 750 million people worldwide.Another 600,000 people filled the streets of London to get a glimpse of the new princess.
The wedding was described as a modern-day fairytale.
Princess Diana and Prince Charles aboard the royal yacht Britannia. Their honeymoon was a 12-day cruise through the Mediterranean.
Tim Graham/Getty Images
They ended their honeymoon at Balmoral Castle, Scotland.