Liberty TripAdvisor Holdings, Inc., through its subsidiaries, engages in online travel research and online commerce businesses. Its travel platform aggregates reviews and opinions of members about destinations, accommodations, activities and attractions, and restaurants worldwide; and helps users plan their trip through its tripadvisor.com Website. The company manages and operates travel media brands, providing travel-planning and trip-taking resources in the travel industry; offers click-based advertising and display-based advertising services; and provides subscription-based advertising products to hotels, B&Bs, and other specialty lodging properties. It also operates Viator, a Website that offers information and services for users to research and book activities and attractions in travel destinations; The Fork, an online restaurant booking platform operating various sites; Sneat, a provider of a mobile reservation platform for restaurants; Citymaps, a social mapping platform; and Tous Au Restaurant, a restaurant event week brand. In addition, the company supplies costumes for various occasions, accessories, seasonal decors, and party supplies through BuyCostumes.com and the Celebrate Express Websites; and provides vacation rental services through various Websites. Liberty TripAdvisor Holdings, Inc. is headquartered in Englewood, Colorado.