Luko
Contributor
Confusion between Schengen agreement and Schengen Region. Even though they have not signed the Schengen agreement Monaco, Vatican and San Marino are considered de facto as part of the Schengen Region with open borders to the countries in which they are enclaved (on the contrary of Andorra that still maintains border controls).There are only 26 countries in Schengen Region. Monaco, San Marino and Vatican City are not included.