1. Columbia University is a prestigious Ivy League university located in New York City. It was founded in 1754 and is the oldest institution of higher education in New York state. The university has a rich history and has produced many notable alumni, including President Barack Obama and Supreme Court Justice Ruth Bader Ginsburg. The campus spans over 36 acres in the Morningside Heights neighborhood of Manhattan and includes historic buildings such as Low Library and St. Paul’s Chapel.

2. The university operates Monday to Friday from 9am to 5pm. The phone number for general inquiries is (212) 854-1754.

3. Columbia University is easily accessible by public transportation. The closest subway stations include 116th Street-Columbia University Station (1 train), 125th Street Station (A, B, C, and D trains), and 110th Street Station (1 train). There is no admission fee to visit the campus, but tickets may be required for specific events or exhibitions. Visitors are encouraged to check the university’s website for more information on events and exhibitions.