San Diego sits in the extreme south of California on the border with Mexico. The city has miles of beaches and a number of U.S. military facilities as well as the world’s busiest land border crossing. It is known as “the birthplace of California” since it was the first European landfall and the first European settlement in present-day California. The city’s economy largely relies on US defense and military-related industries, tourism, and some international trade. It is home to a number of institutions of higher learning, including the University of California, San Diego, the University of San Diego, San Diego State University, NewSchool of Architecture + Design, the headquarters and main campus of National University and Point Loma Nazarene University.