America is home to more world-ranked universities than any other country, giving students access to Nobel laureate faculty, cutting-edge research labs, and a flexible curriculum that lets them explore before committing to a major. It is also the beating heart of global innovation — from Silicon Valley to Wall Street to Hollywood — and STEM graduates receive up to 3 years of post-study work authorization (OPT), opening the door to some of the highest-paying, most sought-after careers in the world.