21 Closest Continental Non-Bordering Country Pairs by Geographical Center

Can you find the 21 pairs of non-bordering continental 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: December 11, 2015
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First submittedDecember 11, 2015
Times taken91
Average score81.0%
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D (km)
Country A
Country B
168
Gambia
Guinea-Bissau
226
San Marino
Vatican City
243
Macedonia
Montenegro
272
Luxembourg
Netherlands
301
Bosnia and Herzegovina
Kosovo
308
Jordan
Lebanon
315
San Marino
Slovenia
319
Bosnia and Herzegovina
Slovenia
328
Albania
Serbia
329
Austria
Croatia
343
Belize
Honduras
353
Monaco
Switzerland
357
Croatia
San Marino
357
Bulgaria
Kosovo
359
Bosnia and Herzegovina
Hungary
360
Luxembourg
Switzerland
378
Liechtenstein
Luxembourg
380
Belize
El Salvador
384
Estonia
Lithuania
384
Albania
Bosnia and Herzegovina
397
Bangladesh
Bhutan
+1
Level 76
Dec 11, 2015
Monaco-Italy? Benin-Ghana? UAE-Qatar? Tricky guessing, without knowing where the "centres" are exactly!
+1
Level 76
Dec 12, 2015
You mostly see 'small' countries in the list because their centers are near the border. I am not sure but perhaps UAE-Qatar didn't ge considered because of the 'dubious' UAE-Qatar border
+1
Level 59
Mar 5, 2017
Germany - Liechtenstein is missing too!