Airbnb, Inc. is an American company which operates an online marketplace and hospitality service for people to lease or rent short-term lodging including holiday cottages, apartments, homestays, hostel beds, or hotel rooms, to participate in or facilitate experiences related to tourism such as walking tours, and to make reservations at restaurants. The company does not own any real estate or conduct tours; it is a broker which receives percentage service fees in conjunction with every booking. The company has over 5 million lodging listings in 81,000 cities and 191 countries and has facilitated over 300 million check-ins.