from other parts of Mexico as well as other countries to the south.
Tijuana also relies on tourism for a major part of its revenue. About 300,000 visitors cross by foot or car from the San Ysidro point of entry in the United States every day, the lessen the strain on the border crossing, the Otay Mesa Crossing has been boosted to support more traffic and 6-lane highway 905 built in 2012, as well as rapid bus transit coming in the future. The city's tourist centers include Avenida Revolucion and Agua Caliente. Restaurants and taco stands, pharmacies, bars and dance clubs are part of the draw for the city's tourists. Many shops and stalls selling Mexican crafts and souvenirs are also located in walking distance from the border. Mexico's drinking age of 18 (vs. 21 in the United States) make it a common weekend destination for many high school and college aged Southern Californians who tend to stay within the Avenida Revoluci�n. Tijuana is also home to several pharmacies marketed toward visitors from the United States. These pharmacies sell some pharmaceutical drugs without prescriptions, and at much lower costs than pharmacies in the US. Many medications still require a Mexican doctor's prescription though several accessible doctor offices are located near the border as well. In addition Tijuana has a legal "red-light" district known as the Zona Norte which also adds significant revenue to its economy. Tijuana is also home to many businesses selling products and services at a much cheaper rate than in the United States. Such businesses as auto detailing, medical services, dentistry and plastic surgery are heavily marketed and located near the city's border with the US.
Economic development has its central business district at Zona R�o, which with the corridor along Blvd. Agua Caliente (the extension of Avenida Revoluci�n) contains the majority of the higher-end office space in the city. Binational economic development along the US-Mexico border is key to
