The exterior walls of the current State Capitol are gneiss (metamorphosed granite) stones weighing as much as ten tons each. The stone came from a quarry a little more than one mile southeast of Union Square. There is very little mortar holding the stones together, and only ropes and muscle power of people and draft animals were used to put the stones in place. The building was designed in a cruciform plan, cross-shaped with a domed rotunda at the center connecting four wings. The building has 3 floors and an attic, but no basement. Until 1888, all of state government was housed in this building or on Union Square. The executive branch was on first floor, the legislative branch on second floor, and the judicial branch and state library on the third floor. The governor and lieutenant governor and their immediate staff still maintain offices on the first floor.