You're supposed to attempt an answer before someone tries to help you but im assuming that your attempt is that you think that it is a chiral center. For a compound to be a chiral center it needs to have four different substituents, in this case the box u put around it is indeed chiral. I guess the rules for chirality can throw you off when it comes to cyclic compounds but all you would have to do is look at the carbon series to the left of the center, and the series to the right, they are not the same, it also has the isopropene substituent and a hydrogen attached to it, 4 different substituents making that a chiral center, correct.
*edit* just to clarify when i say series to the left, i meant within the cyclic structure up the side to the left and up the side to the right, they are not symmetric, there are some cases where a carbon may look like a chiral center but make sure that inside the cyclic structure there is no symmetry