According to Arton, an advisory firm that helps people take part in citizenship and residency programs for investors, a Passport Index, which ranks travel documents based on how many countries their holders can visit without having to obtain a visa in advance, has chosen the countries which most powerful passports.
The more nations you can access merely by showing up and getting a landing visa at the airport (or even entering visa-free), the more powerful your passport is.
While the citizens from the United States and UK have the most powerful passports, followed by Japan and Singapore, if you have the Italian passport you will be able to travel towards 144 countries with no trouble. Ready to go?