The UEFA European Championship, also known as the Euros, is held in different host countries across Europe. The tournament is typically hosted by multiple countries, although there have been occasions when a single country has been the sole host. The most recent edition, UEFA Euro 2020, was held in 2021 and took place in various cities across different European countries due to the special 60th anniversary of the tournament. This unique setup was a part of the celebration, and matches were held in cities such as London, Rome, Munich, Baku, and more.

So, the location of the European Championship varies from edition to edition, and it's best to check the official UEFA website or reliable sports news sources for the most uptodate information on the host countries for future tournaments.