The least populated country in the world is Vatican City, with a population of 799

. Vatican City is a city-state surrounded by Rome, Italy, and is the spiritual and administrative center of the Roman Catholic Church

. It is known for its iconic architecture, sculptures, and murals, such as St. Peter’s Basilica and the Sistine Chapel

. Other sparsely populated countries include Nauru, Tuvalu, Palau, and San Marino