Schiphol, Europe's fourth-busiest airport, is designed around a single terminal, so every passenger in transit can access all the features easily. Pay-in lounges and one hour of free Wi-Fi provide some practical options for layovers. People who want to have a nap, some privacy, and perhaps a quick shower can head to the Amsterdam branch of Yotel inside the airport. Yotel has small hourly-rate "cabins" with a bed, bathroom and (optional) shower. This airport's real charm, however, is that it has opted not to be as focused on retail. The Panorama Terrace offers views of the tarmac and approaching aircraft. There is also an on-site casino and a theater. For culture enthusiasts, the airport's highlight is a special branch of the Rijksmuseum in the airside terminal. It features the works of famous Dutch artists, and — best of all — is free.