One of four self-supporting marble covered domes in the world, the dome is topped by the symbol of Rhode Island, Independent Man, clutching a spear in one hand, the other on an anchor. The floor of the rotunda holds a brass replica of the state seal while the firmament of the dome offers a mural of Roger Williams Colonizing Providence Plantations. “Rare felicity of the times when it is permitted to think what you like and say what you think,” encircles the dome in Latin.