The two breakout stars are in England to do some promo for their show before they head to Paris.
While in London, the boys have been taking in the sites and sharing fun videos on their Instagrams!
Caleb and Gaten even took a double decker bus tour of the city as part of an assignment for school.
“I know I’m on one of the cheesiest things on the planet. It’s one of these tour buses in England. It’s for school but it is actually pretty cool,” Gaten said in a video.