Tourism has massively increased in recent decades. Aviation has opened up travel from domestic to international. The number of international visits has more than doubled since 2000.
Tourism can be important for both the travellers and the people in the countries they visit.
For visitors, travelling can increase their understanding of and appreciation for people in other countries and their cultures.
And in many countries, a lot of people rely on tourism for their income. In some, it is one of the largest industries.
But tourism also has externalities: it contributes to global carbon emissions, and can encroach on local environments and cultures.
On this page, you can find data and visualizations on the history and current state of tourism across the world.