The stereocenter is highlighted on the image:
Work Step by Step
1. Eliminate all carbons with double or triple bonds. 2. Eliminate all carbons that have 2 hydrogens. (They have less than 3 visible bonds.) 3. With the ones that weren't removed, check if they have 4 different groups connected to each one. If so, it is a stereocenter. ** In this case, the stereocenter is connected to the "cyclo" group 2 times, but, the right side is completely different to the left, since it has that extra triangle group and the double bond.