center of attraction
A person, place, or thing that attracts the most attention among others. There were many movie stars at the premiere, but the leading lady was the center of attraction. Temple Bar is definitely the center of attraction in Dublin.
center of attraction, the
Something or someone that attracts the most interest or curiosity. For example, The Ferris wheel is always the center of attraction at our carnival, or Jan is the center of attraction wherever she goes. This expression comes from physics, where since about 1770 it has denoted the point to which bodies tend by gravity or the action of centripetal force.