The TEA/AECOM Theme Index and Museum Index is a collaboration of the Themed Entertainment Association (TEA) and the economics practice at AECOM, a global provider of technical-professional and management-support services. This calendar-year study of global attractions attendance is a free resource for park operators, land developers and the travel industry. Top worldwide theme parks, amusement parks, water parks, museums and theme park group operators are named, ranked by attendance, and industry trends are identified. The global market is studied as a whole, and each of its main regions is also studied separately: the Americas, Europe and Asia. There is also a table of the top waterparks in the world and in the United States, and of the top global chain operators.