Capital City: Mexico City
Population: 128.9 million
Language: Spanish (as well as indigenous languages: Nahuatl, Maya, Otomi, and others)
Currency: The Mexican Peso is the country’s official currency. ATMs are found throughout the country, accepting most debit and credit cards. There are numerous places, including banks, gold shops and money exchange stalls, that exchange USD, whilst most other major foreign currencies such as EUR, UK GBP and AUS can be exchanged at banks.
Whether they need to get a visa or not, all foreigners must carry their valid ID (usually, the passport) as they cross the Mexican border. Moreover, all visitors must obtain and complete an FMM (Forma Migratoria Multiple, or Tourist Card) before they can enter.
Citizens from 69 countries can travel to Mexico visa-free, while others must apply for the Tourist Card. More information on your travellers’ visa requirements can be found HERE.
More info and the e-form procedure can also be found HERE.