The temperatures in the UK might be sizzling today, but it's not put off glamorous Royal Ascot attendees from pulling out all the sartorial stops.

Royal Ascot, the greatest flat racing festival in all of horse racing, is underway and thousands of punters have dressed to impress.

Extravagant, elaborate and sometimes gravity-defying hats take center stage each summer at Royal Ascot, the five-day horse racing festival held at Ascot Racecourse in southern…