[Richard Suchenwirth] - For friends of the upcoming TclWorld map tool (formerly known as [tkWorld]), here's a little 
global gazetteer that gives latitudes and longitudes for some 200 capitals and major 
cities of the world (adapted and digested from [http://www.bcca.org/misc/qiblih/latlong_oc.html]:
 geo::Set {
   Abadan city 30.35 48.2667
   Abidjan city 5.31667 4.01667
   Accra city 5.55 0.2
   Adana city 36.9833 35.3
   {Addis Ababa} city 90.0333 38.75
   Adelaide city -34.9333 138.583
   Aden city 12.8333 45.0333
   Ahmenabad city 23.0333 72.5833
   Algiers city 36.7667 30.05
   {Alice Springs} city -23.8 133.883
   {Alma Ata} city 43.2333 76.8833
   Amman city 31.95 35.95
   Amsterdam city 52.3833 4.91667
   Ankara city 39.95 32.8833
   Archangelsk city 64.55 40.5333
   Ascuncion city -25.2833 57.5
   Asmara city 15.2833 38.9167
   Athens city 37.9667 23.7167
   Auckland city -36.85 174.767
   Baghdad city 33.3333 44.4
   Bangalore city 12.95 77.6167
   Bangkok city 13.7333 100.5
   Baranquilla city 10.9833 74.8
   Barcelona city 41.4 2.15
   Beirut city 33.9 35.4667
   Belem city -1.45 48.4833
   Belfast city 54.6 5.91667
   Belgrade city 44.8 20.4667
   Belize city 17.5167 88.1833
   {Belo Horizonte} city -19.9333 43.95
   Benghazi city 32.1 20.0667
   Bergen city 60.4 5.31667
   {Berlin (West)} city 52.45 13.3
   Birmingham city 52.4833 1.93333
   Bogota city 4.6 74.0833
   Bombay city 18.9 72.8167
   Brasilia city -15.8667 47.9167
   Brazzaville city -4.25 15.25
   Brisbane city -27.4667 153.033
   Brussels city 50.8 4.35
   Bucharest city 44.4167 26.1
   Budapest city 47.5167 19.0333
   {Buenos Aires} city -34.5833 58.4833
   Cairo city 29.8667 31.3333
   Calcutta city 22.5333 88.3333
   Cali city 3.41667 76.5
   {Cape Town} city -33.9333 18.4833
   Caracas city 10.5 66.9333
   Cardiff city 51.4667 3.16667
   Casablanca city 33.5833 7.65
   Cayenne city 4.93333 52.45
   Chittagong city 22.35 91.8333
   Chongquing city 29.55 106.55
   Christchurch city -43.5333 172.617
   Colombo city 6.9 79.8667
   Copenhagen city 55.6833 12.55
   Cordoba city -31.3667 64.25
   Curitiba city -25.4167 49.2833
   {Da Nang} city 16.0667 108.217
   Dakar city 14.7 17.4833
   Damascus city 33.5 36.3333
   {Dar es Salaam} city -6.83333 39.3
   Darwin city -12.4667 130.85
   Dhahran city 26.2833 50.15
   Djakarta city -6.18333 106.833
   Dublin city 53.3667 6.35
   Edinburgh city 55.9167 3.18333
   {Fort De France} city 14.6167 61.0833
   Fortaleza city -3.76667 38.55
   Fukuoka city 33.5833 130.45
   Georgetown city 6.83333 58.2
   Gibraltar city 36.15 5.36667
   Glasgow city 55.8667 4.28333
   Guadalajara city 20.6833 103.333
   {Guantanamo Bay} city 19.9 75.15
   {Guatemala City} city 14.6167 90.5167
   Guayaquil city -2 79.8833
   Hamburg city 53.55 9.96667
   Hannover city 52.4 9.66667
   Hanoi city 21.0333 105.867
   Havana city 23.1333 82.35
   Helsinki city 60.1667 24.95
   {Hong Kong} city 22.3 114.167
   Istanbul city 40.9667 28.8333
   Izmir city 38.4333 27.1667
   Jedda city 21.4667 39.1667
   Jerusalem city 31.7833 35.2167
   Johannesburg city -26.1833 28.05
   Kabul city 34.5833 69.2
   Kaliningrad city 54.7167 20.5
   Karachi city 24.8 66.9833
   Katmandu city 27.7 85.2
   Kharkov city 50 36.2333
   Khartoum city 15.6167 32.55
   Kiev city 50.45 30.5
   {Kindley AFB} city 33.3667 64.6833
   {Kinshasa (Leopoldville)} city -4.33333 15.3
   {Kisangani (Stanleyville)} city -0.433333 15.2333
   Krakow city 50.0667 19.95
   Krasnoyarsk city 56.0167 92.95
   {Kuala Lumpur} city 3.11667 101.7
   Kuibyshev city 53.1833 50.1
   Kupang city -10.1667 123.567
   {La Paz} city -16.5 68.15
   Lagos city 6.45 3.4
   Lahore city 31.5833 74.3333
   {Lajes (Terceira)} city 38.75 27.0833
   Leningrad city 59.9333 30.2667
   Lima city -12.0833 77.05
   Lisbon city 38.7167 9.13333
   London city 51.4833 0
   Lyon city 45.7 4.78333
   Madras city 13.0667 80.25
   Madrid city 40.4167 3.68333
   Makassar city -5.13333 119.467
   Managua city 12.1667 86.25
   Mandalay city 21.9833 96.1
   Manila city 14.5833 120.983
   Mannheim city 49.5667 8.46667
   Manokwari city -0.866667 134.083
   Maracaibo city 10.65 71.6
   Marseilles city 43.3 5.38333
   Medan city 3.58333 98.6833
   Medellin city 6.21667 75.6
   Melbourne city -37.8167 144.967
   Merida city 20.9667 89.6333
   Meshed city 36.2833 59.6
   {Mexico City} city 19.4 99.2
   Milan city 45.45 9.28333
   Minsk city 53.9 27.55
   Mogadiscio city 2.03333 49.3167
   Monrovia city 6.3 10.8
   Monterrey city 25.6667 100.3
   Montevideo city -34.85 56.2167
   Moscow city 55.7667 37.6667
   Mosul city 36.3167 43.15
   Munich city 48.15 11.5667
   Nagpur city 21.15 79.1167
   Nairobi city -1.26667 36.8
   Nantes city 47.25 1.56667
   Naples city 40.8833 14.3
   Narsarssuaq city 61.1833 45.4167
   Nassau city 25.0833 77.35
   {New Delhi} city 28.5833 77.2
   Nice city 43.7 7.26667
   Odessa city 46.4833 30.7333
   Oslo city 59.9333 10.7333
   Palembang city -3 104.767
   {Panama City} city 8.96667 79.55
   Paramaribo city 5.81667 55.15
   Paris city 48.8167 2.48333
   Penang city 5.41667 100.317
   Perth city -31.95 115.85
   Peshwar city 34.0167 71.5833
   Petropavlovsk city 52.8833 158.7
   {Phnom Penh} city 11.55 104.85
   {Port Au Prince} city 18.55 72.3333
   {Port Moresby} city -9.48333 147.15
   {Port of Spain} city 10.6667 61.5167
   {Porto Alegre} city -30.0333 51.2167
   Prague city 50.0833 14.4167
   Pretoria city -25.75 28.2333
   {Punta Arenas} city -53.1667 70.9
   Pyongyang city 39.0333 125.683
   Quito city -0.216667 78.5333
   Rangoon city 16.7833 96.15
   Recife city -8.06667 34.8833
   Reykjavik city 64.1333 21.9333
   {Rio De Janeiro} city -22.9167 43.2
   Riyadh city 24.65 46.7
   Rome city 41.8 12.6
   {Rostov on Don} city 47.2167 39.7167
   Salvador city -13 38.5
   {San Juan} city 18.4833 66.1167
   {San Salvador} city 13.7 89.2167
   Santiago city -33.45 70.7
   {Santo Domingo} city 18.4833 69.9
   {Sao Paulo} city -23.55 46.6333
   Sapporo city 43.0667 141.35
   Seoul city 37.5667 126.967
   Shanghai city 31.2 121.433
   Shannon city 52.6833 8.91667
   Singapore city 1.3 103.833
   Sofia city 42.7 23.3333
   Stockholm city 59.35 18.0667
   Strasbourg city 48.5833 7.76667
   Surabaya city -7.21667 112.717
   Sverdlovsk city 56.8167 60.6333
   Sydney city -33.8667 151.2
   Tainan city 22.95 120.2
   Taipei city 25.0333 121.517
   Tananarive city -18.9167 47.55
   Tashkent city 41.3333 69.3
   Tbilisi city 41.7167 44.8
   Tegucigalpa city 14.1 87.2167
   Tehran city 35.6833 51.4167
   {Tel Aviv} city 32.1 34.7833
   Thessaloniki city 40.6167 22.95
   Tokyo city 35.6833 139.767
   Tucuman city -26.8333 65.1667
   Tunis city 36.7833 10.2
   Valencia city 39.4667 0.383333
   Valparaiso city -33.0167 71.6333
   {Vera Cruz} city 19.2 96.1333
   Vienna city 48.25 16.3667
   Vladivostok city 43.1167 131.917
   Volgograd city 48.7 44.5167
   Warsaw city 52.2167 21.0333
   Wellington city -41.2833 174.767
   Zurich city 47.3833 8.55
 }
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