Most Visited U.S. Cities by South American Tourists

Name all 50 states in the USA. Easy, right?

Try to name the 50 most populous urban areas in Europe.

Name the 20 cities ranked as the world's top financial centers according to the Global Financial Centres Index.

On each line, you will see three countries. Guess the one that has the highest population of the three. One wrong guess and it's over.