Countries with no airport

There're only four countries in the world without an airport. Can you name those four?
Quiz by Sonko
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Last updated: June 28, 2012
First submittedJune 28, 2012
Times taken169
Average score75.0%
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Country
Andorra
Liechtenstein
Monaco
Vatican City
+1
Level 75
Apr 1, 2017
San Marino ?