The 500,000th property was added in July 2014. The site covers over 70,000 destinations across 200 countries. Booking.com's chief operating officer, Gillian Tans, said: “Reaching this milestone is proof of our commitment to ensuring our customers can find and book accommodation that fits their every need and desire, wherever in the world they want to stay. "By expanding our global footprint, bringing guests to new places and building on our hotel heartland to provide leisure and business travellers with an unrivalled selection of accommodation types - from the traditional to the more unexpected - we're granting them the freedom and flexibility to find the accommodation that best meets their needs. Get the full story at Travolution