Amsterdam Airport Schiphol (AMS) is unique among the world's major aviation hubs because it operates under a "One Terminal" concept. While it is a massive complex, all check-in facilities, arrival halls, and boarding gates are housed within a single, interconnected building. This design is intended to make transfers more efficient, as passengers do not need to board a train or shuttle bus to change "terminals." Instead, the layout is divided into three large Departure Halls (1, 2, and 3) which then branch off into various piers (B through M). For 2026 travelers, this means you can walk from a Schengen gate to a Non-Schengen gate without leaving the building, although the distances can be quite significant—sometimes requiring a 20-minute walk. The central hub, known as Schiphol Plaza, serves as the pre-security meeting point and shopping mall that connects the airport to the underground railway station, ensuring that the entire passenger journey stays under one roof.