Beside Mérida's Plaza de Toros, the Casa del Mitreo is a late-1st- or 2nd-century Roman house with a well-preserved fresco and several intricate mosaics. Among the mosaics you'll find the partial but beautiful remains of the 3rd-century mosaico cosmológico (with its bright colours and allegories about the creation of the world), which was damaged by a fire. The Casa del Mitreo is connected by footpath to the adjacent Los Columbarios Roman funeral site.