Hogwarts is the 4-best wizarding school. It comes after Beauxbatons Academy of Magicand and Mahoutokoro School of Magic. Ilvermorny School of Witchcraft and Wizardry is number one.
The best way to pay the campus of Hogwarts a visit is by means of a virtual tour. This is to avoid crowds of people who are not meant to know the presence of the wizarding school.
School such as Bryn Mawr College, Yale University and Cornell University are schools that besides being similar in appearance, also rank high like Hogwarts University.
It isn't surprising why a lot of universities in the UK look similar to the Hogwarts. Some of them include King's College London, Durham University, and University of Oxford.