20 Closest Country Pairs by Geographical Center

Can you find the 20 pairs of countries that are closest together? Distance is measured between their geographical centers
Data from Portland State University (https://www.pdx.edu/econ/country-geography-data), for missing countries from CIA (https://www.cia.gov/library/publications/the-world-factbook/fields/2011.html)
Country A comes before Country B in alphabetical order
Quiz by scambigol
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Last updated: October 16, 2015
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First submittedOctober 16, 2015
Times taken82
Average score75.0%
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D (Km)
COUNTRY A
COUNTRY B
74.4
Saint Lucia
Saint Vincent and the Grenadines
96.5
Liechtenstein
Switzerland
105.8
Antigua and Barbuda
Saint Kitts and Nevis
109.8
Italy
Vatican City
118.8
Italy
San Marino
123.3
Bahrain
Qatar
128.8
Kosovo
Montenegro
134.8
Kosovo
Macedonia
135.2
Grenada
Saint Vincent and the Grenadines
143.9
Belgium
Luxembourg
145.8
Albania
Macedonia
148.6
Bosnia and Herzegovina
Croatia
159.1
Burundi
Rwanda
159.2
Gambia
Senegal
162.5
Kosovo
Serbia
168.6
Gambia
Guinea-Bissau
170.8
Croatia
Slovenia
171.3
Albania
Kosovo
171.8
Austria
Slovenia
174.1
Dominica
Saint Lucia
+1
Level 52
Oct 16, 2015
I really would have expected Haiti and Dominican republic to be here.
+1
Level 65
Oct 16, 2015
That's the 1st thing I tried!
+1
Level 76
Oct 19, 2015
228 km away according to my data