The Gothic Quarter is marked by the point where the two main streets, the Cardo and Decumanus meet. The original centre of the Quarter Gothic, the Plaça del Rei, proudly showcases the architectural ensemble made up of the royal residences of the Catalan-Aragonese monarchs. One can enjoy the charm of old Barcelona and the luxury of some of the most elegant buildings, but also views the city´s Roman wall and several medieval landmarks, although most of the quarter was built in the 19th and 20th century. Its maze of narrow streets and squares is steeped in the city's past and present.