The map provides a comprehensive overview of European countries' memberships in key international organizations as of 2018. It highlights the complex interplay between the European Union (EU), Eurozone, Schengen Area, and NATO. Notably, the EU consists of 28 member states, with 19 adopting the Euro as their currency, forming the Eurozone. The Schengen Area, promoting passport-free travel, includes 26 countries, while NATO, a military alliance, comprises 29 members. The map reveals intriguing patterns, such as the United Kingdom's EU membership but exclusion from the Eurozone and Schengen Area, reflecting its unique position. Switzerland, while not an EU member, participates in the Schengen Area, showcasing its distinct approach to European integration. The map also underscores the diversity in Eastern Europe, where countries like Poland and Hungary are EU and NATO members but not part of the Eurozone. Meanwhile, non-EU countries like Norway and Iceland are part of the Schengen Area, emphasizing their commitment to European cooperation despite EU non-membership. This visualization effectively captures the multifaceted nature of European alliances, illustrating how countries navigate their geopolitical and economic relationships within the continent.