2. USA, Germany, Denmark, Luxembourg – can visit 172 countries
The United States of America is a federal republic which consists of 50 states and a federal district.
At 3.80 million square miles (9.85 million km2) and with over 320 million people, the United States is the world’s fourth-largest country by total area and third most populous.
Germany is a federal parliamentary republic in western-central Europe. It includes 16 constituent states and covers an area of 357,021 square kilometers with a largely temperate seasonal climate.
With 80.7 million inhabitants, Germany is the most populous member state in the European Union. After the United States, it is the second most popular migration destination in the world.
Denmark is a country in Northern Europe. Denmark proper has an area of 43,094 square kilometres (16,639 sq mi), and a population of 5,668,743.
Surprisingly USA comes in the second spot for the most powerful passports in the world. Getting a visa to visit a country (if ever required) is not a major hassle.
