Grace Kelly and Prince Rainier

Year: 1956

Location: Monaco

Est. Cost: $22.43 Million (adjusted for inflation)

Once upon a time, the most glamorous royal in the world was an American actress. Grace Kelly, a beloved Hollywood star, captivated the world when she married Prince Rainier of Monaco in 1956. The wedding was a grand affair, held at Monaco’s Saint Nicholas Cathedral and broadcast live to over 30 million viewers.

Grace’s wedding dress was a masterpiece, costing around $68,000 today. Bridesmaid dresses designed by Joe Allen Hong at Neiman Marcus added to the splendor. The total cost, adjusting for inflation, was $22.43 million. The ceremony hosted 700 guests from around the globe, marking it as one of the most opulent weddings in history.