NIU's residence halls (including two complexes with four 12-story towers each) provide several living options to on-campus students.[30] Living-learning floors include the Health Professions House; Business Careers House; Teacher Education and Certification House (TEACH); Honors House; International House; Science, Technology, Engineering & Mathematics (STEM) House; and Fine Arts House.[31] Other floor options include all-men, all-women, transfers, quiet lifestyle and alcohol-free.