Royals Monaco's Royal Twins Take New York City! See Princess Charlene's Pics of Her Kids' American Adventure Prince Jacques and Princess Gabriella visited landmarks like the American Museum of Natural History and the World Trade Center memorial By Stephanie Petit Stephanie Petit Stephanie Petit is a Royals Writer and Reporter at PEOPLE. People Editorial Guidelines Published on January 17, 2019 05:03 PM Share Tweet Pin Email The twins in New York. Photo: HSH Princess Charlene/Instagram Guess who just took a bite of the Big Apple! Monaco’s Princess Charlene and her children, 4-year-old twins Prince Jacques and Princess Gabriella, traveled to the United States – and the royal mom is sharing a compilation of photos featuring her little ones to Instagram. Snaps show the brother and sister duo bundled up on the streets of New York City, taking in the sights through binoculars from a skyscraper and visiting the American Museum of Natural History. Charlene also shared a photo of the twins at the World Trade Center Memorial. Both children were dressed the part – Jacques rocked a stars and stripes beanie, while Gabriella’s furry hat also featured the USA’s red, white and blue. “First trip to NY ❤️,” Prince Albert’s wife captioned the video, which was set to The Jackson 5’s “ABC.” “Great adventure and a wonderful experience! Thank You 🇺🇸” Can’t get enough of PEOPLE’s Royals coverage? Sign up for our newsletter to get the latest updates on Kate Middleton, Meghan Markle and more! The twins are coming off an exciting Christmas season, marked by their annual holiday portraits. Prince Jacques and Princess Gabriella “believe very strongly in Santa,” Charlene, 40, shared in an interview with French magazine Point de Vue, adding that the kids “count the days until he comes down the chimney. They always leave a glass of milk and cookies for him, as well as water and grass for his reindeer.” Charlene also says that her preschoolers may have indulged a little over the holidays. “I’m sure all moms, like me, have already experienced the consequences of [the children eating] too many sweets, the excess sugar and the excitement that comes with it,” she joked. Vanessa von Zitzewitz/Monaco Royal Family Monaco royal family's Christmas card 2018. Vanessa von Zitzewitz/Monaco Royal Family She tells the magazine she feels “blessed with two healthy children, who give me so much love and happiness. They are smart, well behaved and kind. They know what they want, they speak very well and understand many things. It’s hard to believe they’re already four!” And the icing on the cake, she adds, is that they “love school.” The twins began attending classes in September and “Gabriella even gets up even on Saturdays because she wants to go and is very disappointed when told that there is no school that day.”