Correction: The 9-euro ticket was a limited-time 2022 promotion. In 2026, the permanent successor is the Deutschlandticket (D-Ticket), which costs €63 per month as of January 1, 2026. This ticket offers incredible value for exploring Germany, providing unlimited travel on all local and regional public transit, including RB and RE trains, S-Bahn, U-Bahn, buses, and trams across the entire country. To explore Germany with this pass, you simply purchase the digital subscription via the DB Navigator app or a regional transit app like MVV (Munich) or BVG (Berlin). While it does not cover high-speed ICE/IC trains or private services like FlixBus, you can reach virtually any corner of Germany—from the Bavarian Alps to the Baltic Sea—by stringing together regional train segments. For a "pro" adventure, you can even use the D-Ticket to reach certain border stations in neighboring countries, such as Salzburg (Austria), Basel (Switzerland), or Strasbourg (France) on specific regional routes. Just remember to cancel the subscription by the 10th of the month if you only need it for a single month of travel, as it is a monthly recurring contract.