The duke and the US-born former actress saw a rare copy of the American Declaration of Independence at Edes House.
They were full of smiles as they interacted with crowds of people awaiting their arrival at Chichester in West Sussex.
The Duchess of Sussex rushed to the aid of a young girl who stood crying after being pushed over in the heaving crowds waiting to greet her. Not only is she handling her new royal life with grace and charm, she's also (well, most likely) maintaining her very thorough health and fitness routine - you can tell by the impressive definition of her upper arms.
It is one of only two contemporary handwritten ceremonial manuscript copies. The other is situated in the National Archives in Washington D.C.
Meghan was vocal in her interest and surprise at finding it in Sussex, saying: "My goodness, wow, what are the chances?"
Yankees look for 100th win against Red Sox
The Red Sox jumped to leads of 4-0 after one inning, 7-0 after two and emptied the bench as planned over the next seven. Hicks hit a three-run shot in New York's six-run fourth. "It happens all the time at our stadium", Stanton said.
The Duke and Duchess of Sussex, Prince Harry and Meghan Markle visit Brighton.
The pair went on to greet more members of the public outside the Royal Pavilion in Brighton.
Other stops on the visit will include the Royal Pavilion, which was built for George, the Prince of Wales, who then became the Prince Regent in 1811, and the Survivors' Network; which is a charity that supports survivors of sexual abuse.
Meghan kept it classy sporting a cream Giorgio Armani coat paired with a dark green button-down, a leather pencil skirt and beige heels.
Harry kept his cool in an understated pale grey suit which he dressed down by wearing his shirt open and opting not to wear a tie.