Countries

I'm trying to collect at least one viewcard from every country, written and stamped from origin. 

Europe

AD Andorra la Vella
AX Åland Islands (FI) Mariehamn
AL Albania Tirana
AT Austria Vienna
BY Belarus Minsk
BE Belgium Brussels
BA Bosnia and Herzegovina Sarajevo
BG Bulgaria Sofia
HR Croatia Zagreb
CZ Czech Republic Prague
DK Denmark Copenhagen
EE Estonia Tallinn
FO Faroe Islands (DK) Tórshavn
FI Finland Helsinki
FR France Paris
DE Germany Berlin
GI Gibraltar (BOTs) Gibraltar
GR Greece Athens
GG Guernsey (GB) St Peter Port
HU Hungary Budapest
IS Iceland Reykjavik
IE Ireland Dublin
IM Isle of Man (GB) Douglas
IT Italy Rome
JE Jersey (GB) Saint Helier
XK Kosovo Pristina
LV Latvia Riga
LI Liechtenstein Vaduz
LT Lithuania Vilnius
LU Luxembourg Luxembourg
MT Malta Valletta
MD Moldova Chişinău
MC Monaco Monaco
ME Montenegro Podgorica
NL Netherlands Amsterdam
MK North Macedonia Skopje
NO Norway Oslo
PL Poland Warsaw
PT Portugal Lisbon
RO Romania Bucharest
RU Russia Moscow
SM San Marino San Marino
RS Serbia Belgrade
SK Slovakia Bratislava
SI Slovenia Ljubljana
ES Spain Madrid
SJ Svalbard and Jan Mayen (NO) Longyearbyen
SE Sweden Stockholm
CH Switzerland Bern
UA Ukraine Kyiv
GB United Kingdom London
VA Vatican Vatican City

North America

AI Anguilla (BOTs) The Valley
AG Antigua and Barbuda St. John's
AW Aruba (NL) Oranjestad
BS Bahamas Nassau
BB Barbados Bridgetown
BZ Belize Belmopan
BM Bermuda (BOTs) Hamilton
BQ Bonaire, Sint Eustatius and Saba (NL) Kralendijk
VG British Virgin Islands (BOTs) Road Town
CA Canada Ottawa
KY Cayman Islands (BOTs) George Town
CR Costa Rica San José
CU Cuba Havana
CW Curaçao (NL) Willemstad
DM Dominica Roseau
DO Dominican Republic Santo Domingo
SV El Salvador San Salvador
GL Greenland (DK) Nuuk
GD Grenada St. George's
GP Guadeloupe (FR) Basse-Terre
GT Guatemala Guatemala City
HT Haiti Port-au-Prince
HN Honduras Tegucigalpa
JM Jamaica Kingston
MQ Martinique (FR) Fort-de-France
MS Montserrat (BOTs) Plymouth
MX Mexico Mexico City
NI Nicaragua Managua
PA Panama Panama City
PR Puerto Rico (USA) San Juan
BL Saint Barthélemy (FR) Gustavia
KN Saint Kitts and Nevis Basseterre
LC Saint Lucia Castries
MF Saint Martin (FR) Marigot
PM Saint Pierre and Miquelon (FR) Saint-Pierre
SX Sint Maarten (NL) Philipsburg
VC Saint Vincent and the Grenadines Kingstown
TC Turks and Caicos Islands (BOTs) Cockburn Town
TT Trinidad and Tobago Port of Spain
US United States of America Washington D.C
VI Virgin Islands of the USA Charlotte Amalie

US States

AL Alabama Montgomery
AK Alaska Juneau
AZ Arizona Phoenix
AR Arkansas Little Rock
CA California Sacramento
CO Colorado Denver
CT Connecticut Hartford
DE Delaware Dover
FL Florida Tallahassee
GA Georgia Atlanta
HI Hawaii Honolulu
ID Idaho Boise
IL Illinois Springfield
IN Indiana Indianapolis
IA Iowa Des Moines
KS Kansas Topeka
KY Kentucky Frankfort
LA Louisiana Baton Rouge
ME Maine Augusta
MD Maryland Annapolis
MA Massachusetts Boston
MI Michigan Lansing
MN Minnesota St. Paul
MS Mississippi Jackson
MO Missouri Jefferson City
MT Montana Helena
NE Nebraska Lincoln
NV Nevada Carson City
NH New Hampshire Concord
NJ New Jersey Trenton
NM New Mexico Santa Fe
NY New York Albany
NC North Carolina Raleigh
ND North Dakota Bismarck
OH Ohio Columbus
OK Oklahoma Oklahoma City
OR Oregon Salem
PA Pennsylvania Harrisburg
RI Rhode Island Providence
SC South Carolina Columbia
SD South Dakota Pierre
TN Tennessee Nashville
TX Texas Austin
UT Utah Salt Lake City
VT Vermont Montpelier
VA Virginia Richmond
WA Washington Olympia
WV West Virginia Charleston
WI Wisconsin Madison
WY Wyoming Cheyenne
DC District of Columbia (Federal District) Washington D.C.

South America

AR Argentina Buenos Aires
BO Bolivia Sucre
BR Brazil Brasília
CL Chile Santiago
CO Colombia Bogotá
EC Ecuador Quito
FK Falkland Islands (BOTs) Stanley
GF French Guiana (FR) Cayenne
GY Guyana Georgetown
PY Paraguay Asunción
PE Peru Lima
GS South Georgia and the South Sandwich Islands (BOTs) King Edward Point
SR Suriname Paramaribo
UY Uruguay Montevideo
VE Venezuela Caracas

Oceania

AS American Samoa (US) Pago Pago
AU Australia Canberra
CX Christmas Island (AU) Flying Fish Cove
CC Cocos (Keeling) Islands (AU) West Island
CK Cook Islands Avarua
FJ Fiji Suva
PF French Polynesia (FR) Papeete
GU Guam (US) Hagåtña
KI Kiribati Tarawa
MH Marshall Islands Majuro
FM Micronesia Palikir
NR Nauru -
NC New Caledonia (FR) Noumea
NZ New Zealand Wellington
NU Niue (NZ) Alofi
NF Norfolk Island (AU) Kingston
MP Northern Mariana Islands (US) Saipan
PW Palau Melekeok
PG Papua New Guinea Port Moresby
PN Pitcairn (BOTs) Adamstown
WS Samoa Apia
SB Solomon Islands Honiara
TK Tokelau (NZ) -
TO Tonga Nuku'alofa
UM United States Minor Outlying Islands -
TV Tuvalu Funafuti
VU Vanuatu Port Vila
WF Wallis and Futuna Mata-Utu

Asia

AF Afghanistan Kabul
AM Armenia Yerevan
AZ Azerbaijan Baku
BH Bahrain Manama
BD Bangladesh Dhaka
BT Bhutan Thimphu
BN Brunei Bandar Seri
IO British Indian Ocean Territory (BOTs) Camp Justice
KH Cambodia Phnom Penh
CN China Beijing
CY Cyprus Nicosia
GE Georgia Tbilisi
HK Hong Kong (CN) Hong Kong
IN India New Delhi
ID Indonesia Jakarta
IR Iran Tehran
IQ Iraq Baghdad
IL Israel Jerusalem
JP Japan Tokyo
JO Jordan Amman
KZ Kazakhstan Astana
KP Korea (North) Pyongyang
KR Korea (South) Seoul
KW Kuwait Kuwait City
KG Kyrgyzstan Bishkek
LA Laos Vientiane
LB Lebanon Beirut
MO Macao (CN) Macao
MY Malaysia Kuala Lumpur
MV Maldives Malé
MN Mongolia Ulan Bator
MM Myanmar Naypyitaw
NP Nepal Kathmandu
OM Oman Muscat
PK Pakistan Islamabad
PS Palestine -
PH Philippines Manila
QA Qatar Doha
SA Saudi Arabia Riyadh
SG Singapore Singapore
LK Sri Lanka Colombo
SY Syria Damascus
TW Taiwan Taipei
TJ Tajikistan Dushanbe
TH Thailand Bangkok
TL Timor-Leste Dili
TR Turkey Ankara
TM Turkmenistan Ashgabat
AE United Arab Emirates Abu Dhabi
UZ Uzbekistan Tashkent
VN Vietnam Hanoi
YE Yemen Sanaa

Africa

DZ Algeria Algiers
AO Angola Luanda
BJ Benin Porto-Novo.
BW Botswana Gaborone
BF Burkina Faso Ouagadougou
BI Burundi Bujumbura
CM Cameroon Yaoundé
CV Cape Verde Praia
CF Central African Republic Bangui
TD Chad N'Djamena
KM Comoros Moroni
CD Congo (Dem. Rep.) Kinshasa
CG Congo Brazzaville
CI Côte d'Ivoire Yamoussoukro
DJ Djibouti Djibouti
EG Egypt Cairo
GQ Equatorial Guinea Malabo
SZ Eswatini Mbabane
ER Eritrea Asmara
ET Ethiopia Addis Ababa
GA Gabon Libreville
GM Gambia Bathurst
GH Ghana Accra
GN Guinea Conakry
GW Guinea-Bissau Bissau 
KE Kenya Nairobi
LS Lesotho Maseru
LR Liberia Monrovia
LY Libya Tripoli
MG Madagascar Antananarivo
MW Malawi Lilongwe
ML Mali Bamako
MR Mauritania Nouakchott
MU Mauritius Port Louis
YT Mayotte (FR) Mamoudzou
MA Morocco Rabat
MZ Mozambique Maputo
NA Namibia Windhoek
NE Niger Niamey
NG Nigeria Abuja
RE Réunion (FR) Saint-Denis
RW Rwanda Kigali
SH Saint Helena, Ascension and Tristan da Cunha (BOTs) Jamestown
ST Sao Tome and Principe São Tomé
SC Seychelles Victoria
SN Senegal Dakar
SL Sierra Leone Freetown
SO Somalia Mogadishu
ZA South Africa Pretoria
SS South Sudan Juba
SD Sudan Khartoum
TZ Tanzania Dodoma
TG Togo Lomé
TN Tunisia Tunis
UG Uganda Kampala
EH Western Sahara (MA) Laayoune
ZM Zambia Lusaka
ZW Zimbabwe Harare

Antarctica

AQ Antarctica -
TF French Southern Territories (FR) Port-aux-Français