What was the city of Xochimilco, now sometimes called the historic center of the borough, began as a pre-Hispanic city on the southern shore of Lake Xochimilco. After the Conquest, the Spanish built the San Bernardino de Siena monastery and church, which is still the center of the borough. The main street through the center of town, Guadalupe I.Ramirez, was originally a land bridge connecting this area, then on an island, to the causeway that lead to Tenochtitlan (Mexico City). As the lake dried, the bridge became road, and it was called the Puente de Axomulco in the colonial era. It received its current name in the 1970s to honor a delegate of the borough. This town center also has a large plaza and to the side of this, a large area filled with street vendors, many selling ice cream. There is also a “Tiangus de Comida” or market filled with food stalls. This center underwent renovations in 2002 at a cost of sixty million pesos. Drainage and sidewalks were improved and security cameras installed. To improve the area's look for tourists, businesses in the center agreed with the borough and INAH to change their façades to certain colors.