When it comes to public transportation, the Germans are well ahead of the game. Instead of making people purchase different tickets or travel cards for each transport company and each mode of travel in every city and town you visit, they created the Deutschland-Ticket (or D-Ticket for short), a transport card that works throughout the country.
For the meagre price of $55 (€49) per month, the Deutschland-Ticket offers unlimited travel on all means of local public transport throughout Germany. That means that you can ride regional trains and buses, trams, subways, etc. in the entire country with just one card.