King Charles has departed the US after a four-day state visit comes to a close.
President Donald Trump earlier called him "the greatest king in my book", as he said farewell to the King and Queen at the White House, BBC reported.
The official goodbye showed the pair's different approaches, our royal correspondent writes - Trump was happy to chat in front of the camera, while the King seemed less enchanted.
On their last day in the US, the royals met locals in the town of Front Royal in Virginia - the King also laid a wreath at the Tomb of the Unknown Soldier at Arlington National Cemetery.
The King's plane will be heading to Bermuda - a British overseas territory, where he is head of state.
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