The USA doesn’t have a system of magnet schools. Some parts of the country, including New York City, do.

New York City’s school district has several high schools that you have to a test to get into that high school or have an artistic portfolio. These tests are very competitive and the high schools are geared to help funnel the brightest of New York City’s youth into college. There is no tuition to get in and these high schools are seen as a gateway to the best colleges in the world.

Most school districts in the USA don’t have these public magnet schools.