Codes
Practical advice from Wikivoyage on safety, health, money, transport, food and more.
Airport codes
Airport names are often abbreviated by codes, including IATA codes and ICAO codes, that are only a few characters in length. Knowing them can be useful for orientation, booking or conversation.
Station codes
The names of train and bus stations are often abbreviated by codes that are only a few characters in length. The station codes are intended to be unique within a given country, and knowing them can be useful for booking.