from Nogales, Sonora, Mexico. Those dusty streets of Colonia Ingenieros seem narrow now, with dozens of homes still perched miraculously on a rocky hillside. Sponsor Message Ilegales -- men and ...

Arizona is home to a pair of vibrant twin border cities known as Ambos, Nogales. The cities are split by the U.S.-Mexico border but share a storied history. Here's what you need to know about the ...