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Meghan the Duchess of Sussex attends day one of Royal Ascot wearing a sculptural Philip Treacy hat and an elegant Givenchy dress.
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A racegoer poses for a photograph as she arrives on day one of the Royal Ascot horse racing meet.
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The Queen arrives by carriage to Royal Ascot Day wearing a bright yellow hat, with a flourish of blue.
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The event is known for being a great place to people watch and admire the many flamboyant choices of headwear.
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In a world of understated modern fashion, "more is more" still applies at Ascot.
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A woman wears a particularly large floral hat during day one of Royal Ascot.
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Two racegoers wear ornately decorated hats during Royal Ascot.
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"Every nuance of style, shape, color betrays the ambitions and status of its wearer. It may be a pretty scene, but it's also cruelly revealing," said design expert and cultural commentator Stephen Bayley on the subject of hats.
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A women wears a delicate white floral design on day one of the races.
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A young woman accessorizes her hijab with a fascinator.
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The flower theme continues with this bold and playful interpretation.
CNN  — 

Once a year the town of Ascot transforms into a global stage for flamboyant hats, fascinators, and horse racing.

The Royal Ascot, attended for the first time this year by the Duchess of Sussex, began in 1711 and attracts around 300,000 racegoers each year. The tradition of wearing brightly colored and daring hats has since become one of its main attractions.

02:29 - Source: CNN
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For design expert and cultural commentator Stephen Bayley, “Snobbery is the science of analyzing visual and aural data to determine class. And the British have raised this mere science to a high art form. Take hats, especially the fantastical display headwear at Royal Ascot or a royal wedding. Every nuance of style, shape, color betrays the ambitions and status of its wearer. It may be a pretty scene, but it’s also cruelly revealing.”

Click through the gallery above to see some of the most striking hats on show.