Not every country requires applicants pass an examination before claiming citizenship. Some countries allow foreigners to become citizens through investments or charitable donations, reports The Washington Post. Others, such as Republic of Ireland, grant citizenship upon documentation that a parent or grandparent was born in the country, claims The Billfold.
As of 2015, Malta sells citizenship to foreign investors for $1.57 million, Cyprus offers citizenship to individuals who invest $6.2 million, and the islands of Antigua and Barbuda offer citizenship for either a $400,000 real estate investment or a $200,000 charity donation, according to The Washington Post.
Another country that allows citizenship by ancestry is Italy, according to The Billfold. Someone can apply for Italian citizenship through having an Italian-born great-grandfather or an Italian-born grandmother or grandfather.