Gwanghwamun D Tower is a mixed-use office building in the middle of Gwanghwamun, with commercial space on floors 1 through 5 and offices from floor 6 up. It houses restaurants and cafes including Builds Gwanghwamun, Paulie's Pizza, Melting Shop, Modern Shabu House, and Soosoo Coffee, along with Uniqlo. In the open plaza between the buildings there is a hydrangea path that does not appear separately on maps, and beneath the glass you can see the house site and foundation stones of a Joseon-era plot from 600 years ago. Seoul Square Dental Clinic is on basement level 1.