The Institute, said to look like an old gothic cathedral, is located in New York. Mundanes are unable to see it, because it is covered by glamour. There is a section of the Institute called the Sanctuary that is outside the protection of hallowed ground. It is used to allow Shadowhunters and the Downworlders who cannot enter hallowed ground to hold meetings whilst still in the Institute.
My advice for girls who are waiting for their Prince Charming is to be open for anything. Be open to new experiences, be open to the idea that it may take longer than you want, but if you’re open to meeting new people and new adventures, then love will come along.