Booking.com is a leading online travel agency headquartered in Amsterdam, Netherlands, offering reservation services for over 3.4 million properties worldwide, including hotels, apartments, resorts, and alternative accommodations. It connects travelers with lodging, flights in 55 markets, and tours in over 1,300 cities, serving leisure and business markets in more than 220 countries. As a subsidiary of Booking Holdings Inc., it holds a dominant position in the digital travel industry.