The California Institute of Technology (Caltech) is a world-renowned science and engineering research and education institution, located in Pasadena, California, around 11 miles northeast of downtown Los Angeles.
Caltech has a high research output as well as many high-quality facilities such as the Jet Propulsion Laboratory (owned by NASA), the Caltech Seismological Laboratory, and the International Observatory Network. It’s among a small group of institutes of technology in the United States primarily devoted to teaching technical arts and applied sciences, and its fiercely competitive admissions process ensures only a small number of the most gifted students are admitted.
Source: topuniversities.com