In the Middle Ages, Toledo's Jewish Quarter was the brightest and most important in the Western world. In fact, it comprises a number of Jewish neighbourhoods that merged over time until they occupied nearly ten percent of the walled city. The maze of narrow streets stretches across the northwest of the capital, around the two large synagogues that still remain: El Transito and Santa Maria la Blanca. La Calle del Angel and its extension, that of Santo Tome, and the streets of San Juan de Dios and los Reyes Catolicos are the main thoroughfares of the madinat al-Yahud, the "city of the Jews." There are many important points of reference in the area, such as the Samuel Levi monument and houses (including the current El Greco museum), the Arquillo del Judio (the Jew's arch) and the Puerta de Cambron and San Martin bridge, main access to the city for Jews through the centuries.