Saturday's coronation was an historic day jam-packed with many events, some planned and others not.
CNN looks at some of history's most memorable moments.
The Crowning Event
Charles was hidden for most of the dramatic service at Westminster Abbey in London on Saturday.
The Dean of Westminster, behind a three-sided curtain, poured the holy oil into the Coronation Spoon from the Ampulla - a gold flask shaped like an eagle. Next, the Archbishop of Canterbury smeared the holy oil on Charles' head, chest and hands according to Church of England liturgy.
The oldest object used at coronations is a silver-gilt teaspoon from the 12th century. The Choir of Westminster Abbey performed the anthemic "Zadok, the Priest" by George Frideric Handel in the background. It was composed for King George II's coronation in 1727, and has been performed at every British coronation ever since.
Justin Welby, Archbishop Justin of Canterbury, placed the St. Edward's crown on Charles III's hair as soon as he reemerged. Charles III wore the St. Edward's Crown for the first time. The crown is only worn for coronations of new monarchs.
Welby yelled "God save the King" after crowning Charles. The people in the audience repeated these words.
Camilla followed suit shortly after. Camilla was also anointed by the Archbishop, but this time in front of the audience. She then received Queen Mary's crown.
The entire celebration was based on music, which is in line with history. The music was performed by the best singers and musicians from around the world.
The coronation hymn written by Hubert Parry in 1902 for King Edward VII's coronation and performed at every coronation since, "I Was Glad" was played as King Charles and Queen Camilla entered.
The old and the new were blended together. Charles asked Andrew Lloyd Webber, whose music was more familiar to West End audiences than Westminster Abbey congregations, to compose a Coronation Anthem.
This was the first time a gospel group has ever performed at a coronation. The Ascension Choir, dressed in white and glistening, sang 'Alleluia" just before the sermon of the Archbishop.
Lady in blue
Westminster Abbey was packed with thousands of people.
A woman in blue, dressed in a teal cape with gold details, grabbed attention when she held the Sword of Offering, or the Jewelled Sword. This was both before and after the investiture. Who is she?
Penny Mordaunt has been a Conservative legislator in the United Kingdom since 2010.
She took part in the ceremony as she is the Leader of the House of Commons and Lord President of Privy Council, a body of senior politicians that act as official advisors to the monarch.
The president of the council is involved in various royal ceremonies. He or she acts as a bridge between the King and Queen, and the elected officials. Mordaunt was the speaker at the Proclamation King Charles two days after Queen Elizabeth's death.
Queen Camilla’s outfit
The Queen Camilla looked regal in ivory, gold and silver. Who was she wearing, though?
Bruce Oldfield is a British designer with whom she has had a long-standing relationship.
Her coronation gown was simple, tailored, and made from Peau de soie, silk with a dull-lustre finish. It looked more like a coat with an underskirt, rather than a traditional dress.
When she arrived at Westminster Abbey, before the service began, the Robe of States made of crimson velvet with ermine was protecting her dress. It was originally designed for Queen Elizabeth's coronation.
Elliot Zed, a British designer, created shoes that matched her silk dress.
The Vanishing Prince(s)
Prince Louis, youngest son of Prince and Princess Wales, never disappoints at royal events. He stole the show again during the coronation ceremonies.
The Princess of Wales and Princess Charlotte sat between the Princess, a 5-year-old boy, who was yawning. He then disappeared from the service.
The young royal was expected to leave the service early. Fortunately for the fans, he came back before the service ended.
If you don't recall, Louis became famous during the Queen's Platinum Jubilee Celebrations in June. He was caught throwing a tantrum, covering his ears and screaming while the flypast took place.
Before Saturday, there were many rumors about whether Prince Harry was going to attend his father's coronation.
The Duke of Sussex sat in the third row at the Westminster Abbey coronation ceremony on Saturday.
Harry, wearing a morning suit and military medals with two of his cousins Princess Beatrice, and Princess Eugenie, arrived along with his uncles Prince Edward and Prince Andrew.
Prince Harry did not attend with his wife Meghan, Duchess Sussex. Meghan was reportedly in the US celebrating Archie's 4th birthday.
The coronation was the first public meeting of the prince with his family members since his memoir 'Spare' was released.
He was seen smiling and talking with his cousins in the rain after it ended. Then he drove on his own.
On Saturday, he did not greet the public with other members of the Royal Family from the Buckingham Palace balcony - an important part of royal events.
CNN has confirmed that Prince Harry was not invited to attend this balcony moment. The Royal Air Force performed a shortened flypast. Prince Andrew was also not present.
A balcony flypast
While the weather was not in favor of King Charles, the crowds appeared unperturbed. However, the rain did change plans for the Royal Air Force's traditional flypast.
It was not as expected, with the Typhoons Spitfires Hurricanes Lancaster bombers and Spitfires.
The crowds enjoyed two more appearances by the King and Queen on the balcony after they appeared to have waved goodbye to their supporters.
The day had been filled with events that brought thousands of people to London's streets.