King Charles III and Queen Camilla laid flowers at the Sept. 11 memorial before stopping by an urban farm, the New York Public Library, a business event and a gala.

The estimated value of some of the most famous royal engagement rings ranges from $250,000 to $38.8 million

From a barbecue at Camp David to a college football game, the British monarch has experienced many American traditions over decades of visiting the United States.

King Willem-Alexander celebrated his birthday, which doubles as a national holiday in the Netherlands, with his wife and three daughters

Not since his mother, Queen Elizabeth II, traveled to Washington after the Suez Crisis has a visit by the British monarch come at such a fraught point in Anglo-American relations.

Not since his mother, Queen Elizabeth II, traveled to Washington after the Suez Crisis has a visit by the British monarch come at such a fraught time in Anglo-American relations.

With King Charles III and Queen Camilla set to arrive for a state visit with President Trump, we look back at some major moments in previous royal trips to the United States.

The British royals are set to arrive on Monday for a visit hosted by President Trump, with a garden party, an address to Congress and a banquet on the schedule.

Representative Ro Khanna had asked Buckingham Palace for a private meeting between the victims and King Charles during his planned visit to the U.S. next week.