What was it like to be right in the middle of the wedding of the century?
McInerney headed over to Buckingham Palace at 5:30 a.m.
Security was tight in London. Hordes of police and snipers were on the rooftops and the streets blocked to all traffic, so Holden hitched a ride on a motorcycle cab, somehow keeping her hair looking great under that helmet.
She wore sneakers so she could get to the church on time.
"All the streets of central London are closed off, it's like walking through a ghost town, and then the minute you hit Westminster and the surrounding areas, the crowds are pouring into the center of London," Holden describes.
The enormous crowd on the streets was estimated at one million people, all thrilled to be witnessing history.
McInerney met two girls who wore wedding gowns for the occasion, and three British guys who stripped down to their Union Jack briefs.
"It's not even 7 a.m., we're outside Buckingham Palace, and everyone is gathered to see that kiss."
Holden had to squeeze her way through a sea of people outside the Abbey. "People have painted their faces, they've dressed up in Union Jacks, they're wearing sparkly hats, everybody had gone nuts for this wedding this morning!"
She even used a periscope to get a better view!
At precisely 10:55 a.m., the crowds got their first glimpse of Catherine on her way to the Abbey.
Things got serious during the ceremony, and a sudden hush came over the crowd.
The crowd at Buckingham Palace grew more subdued as they listened to the ceremony over loudspeakers.
The rejoicing resumed when William and Catherine left Westminster Abbey as man and wife.
And then came that magical moment everyone had been waiting for. The newlyweds shared not one but two kisses on the balcony!