And Horsham got the Royal seal of approval when the Queen announced 'It's splendid!' as she stepped out of the Capitol to be greeted by the cheering crowds.
It was the crowning glory on a day when Horsham did itself proud and had many harking back to the golden days of the Coronation, with red, white and blue flags and banners flying high.
"The Queen thoroughly enjoyed the day and it looked like the whole town was out on the streets," said a Buckingham Palace spokesman afterwards.
"She thoroughly enjoyed seeing all the crowds in the town centre. It was quite an amazing sight to see how many people turned out. It was incredible."
The excitement all started at Christ's Hospital School, where the Queen met children and staff and helped celebrate 450 years of Royal patronage, before arriving in the town centre in the afternoon.
"How nice to be in Horsham," the Queen was heard to say as the party entered the new Blackhorse Way development to unveil a sundial at the centre of the Forum, which was filled with more than 2,000 onlookers.
The Queen and Prince Philip were then driven through the Carfax, waved on by thousands more people who were lining the streets, and arrived at the Capitol to officially open Horsham's new arts centre.
The crowds in North Street were so huge that police unexpectedly had to close the road to traffic as people rushed to catch a glimpse of their monarch while she met councillors, business leaders and volunteers in the glass atrium.
The day was declared a spectacular success – despite fears that the visit to the Blackhorse Way Forum might be cancelled at the last minute because of delays to the building work.
Apparently even the Queen had heard the event might be in doubt.
Leader of Horsham District Council, Liz Kitchen, said: "She said: 'I gather it was touch and go and took a lot of hard work?' so I said 'Indeed Ma'am!'."
Mrs Kitchen added: "It's special for Horsham that she came. I was especially pleased about the crowds. It's been a really, really good day for Horsham."
Chief executive Martin Pearson added: "We were just thrilled with the way it went.
"It was clearly a rush to get the Forum ready but I think on the day the faces in the crowd and the children that were present made it all worthwhile.
"It has been a nervous week, we will admit to that. It's been great teamwork to get to this point.
"Carillion (the building contractors) worked all night long for two nights to give us a safe environment. It has been touch and go really."
Michael Simpkin, chief executive of Christ's Hospital, said: "It was a day of great excitement for everyone involved at Christ's Hospital.
"Every child and every member of staff who had the opportunity to meet a member of the Royal family are going to remember it for the rest of their lives. It was a absolutely sparkling and special day."
And Horsham district commander for Sussex Police, Chief Inspector Sally Simmonds, congratulated the people of Horsham for helping to make the event safe and peaceful.
"The Royal visit to Horsham was a real success," she said. "The crowd were very co-operative and good natured, even though there were probably more people there than anyone expected. No arrests were made."
John Williams, West Sussex Lieutenancy Officer, said the Royal party had been very impressed with their Horsham experience.
"They thoroughly enjoyed the visit and we hope it won't be another 25 years before she comes back again. It's gone really, really well. A big pat on the back to Horsham," he said.