Expedition #31

2026-11-04 · five prompts, fully revealed. Prefer no spoilers? Use the hints pages instead.

Prompt 1 of 5

Pin a country with an official national flag using only blue and white (variants of national flags count)

Ruling note: Official plain variants and national naval ensigns count; separate naval jacks do not. Nicaragua permits its plain flag for national celebrations. Argentina and Uruguay still add a gold sun.

Gem note: Four white stars mark Micronesia's four states on the blue of the Pacific.

10 accepted answers
CountryTierPick share
Greece Common
Finland Uncommon
Israel Uncommon
Honduras Uncommon
Russia Rare
Guatemala Rare
El Salvador Rare
Somalia Rare
Nicaragua Elusive
Micronesia Farflung
Prompt 2 of 5

Pin a country that has issued circulating money showing Queen Elizabeth II

Ruling note: Past colonial and shared-board issues count, including Hong Kong for China. Collector-only coins and using foreign money alone do not.

Gem note: Before the dinar, British Aden shared a currency with East Africa, including coins bearing the Queen's portrait.

42 accepted answers
CountryTierPick share
United Kingdom Common
Canada Uncommon
Australia Uncommon
New Zealand Uncommon
South Africa Uncommon
Fiji Rare
Jamaica Rare
Belize Rare
Bahamas Rare
China Rare
Malaysia Rare
Singapore Rare
Sri Lanka Rare
Kenya Rare
Nigeria Rare
Barbados Rare
Trinidad and Tobago Rare
Guyana Rare
Ghana Rare
Cyprus Rare
Mauritius Rare
Malta Rare
Zimbabwe Rare
Tanzania Elusive
Uganda Elusive
Zambia Elusive
Solomon Islands Elusive
Antigua and Barbuda Elusive
Saint Lucia Elusive
Dominica Elusive
Brunei Elusive
Malawi Elusive
Sierra Leone Elusive
Seychelles Elusive
Tuvalu Elusive
Grenada Elusive
Saint Kitts and Nevis Elusive
Saint Vincent and the Grenadines Elusive
Cameroon Farflung
Somalia Farflung
Gambia Farflung
Yemen Farflung
Prompt 3 of 5

Pin a country with cave paintings from the last Ice Age

Ruling note: Pigment drawings and painted stones in caves or shelters count, disputed dates included. The last Ice Age ended about 11,700 years ago. Algeria, Slovenia, Turkey and Peru count as close calls, on dates near that line or not yet confirmed.

Gem note: Mineral crusts over a hand stencil on Muna Island put it at least 67,800 years in the past.

32 accepted answers
CountryTierPick share
France Common
Spain Uncommon
Australia Uncommon
Italy Rare
India Rare
Argentina Rare
South Africa Rare
Portugal Rare
Brazil Rare
Germany Rare
China Rare
United Kingdom Rare
Russia Rare
Egypt Rare
Colombia Rare
Libya Rare
Peru Elusive
Türkiye Elusive
Romania Elusive
Namibia Elusive
Mongolia Elusive
Croatia Elusive
Zimbabwe Elusive
Switzerland Elusive
Malaysia Elusive
Botswana Elusive
Algeria Elusive
Slovenia Elusive
Uzbekistan Elusive
Indonesia Farflung
Zambia Farflung
Timor-Leste Farflung
Prompt 4 of 5

Pin a country where trains have used a tunnel under the sea or an estuary

Ruling note: Metros beneath estuaries count, including Rio's sea–lagoon channel. Øresund's tunnel is Danish; Sweden has the bridge.

Gem note: Koivusaari's passengers reach their undersea platforms on 76-metre escalators.

21 accepted answers
CountryTierPick share
United Kingdom Common
France Uncommon
Japan Uncommon
United States Uncommon
China Rare
Türkiye Rare
Australia Rare
Denmark Rare
Canada Rare
Spain Rare
Netherlands Rare
India Rare
Singapore Rare
United Arab Emirates Elusive
Belgium Elusive
Russia Elusive
South Korea Elusive
Taiwan Elusive
Thailand Elusive
Brazil Farflung
Finland Farflung
Prompt 5 of 5

Pin a country where pitcher plants are native

Ruling note: Insect-trapping tank bromeliads count too. France counts for New Caledonia and French Guiana. Introduced plants do not count.

Gem note: New Caledonia, part of France, is home to the world's easternmost Nepenthes.

43 accepted answers
CountryTierPick share
Malaysia Common
United States Uncommon
Indonesia Uncommon
Australia Uncommon
Philippines Uncommon
Canada Rare
Madagascar Rare
Thailand Rare
India Rare
Brazil Rare
Venezuela Rare
Papua New Guinea Rare
Singapore Rare
China Rare
Sri Lanka Rare
Brunei Rare
Cambodia Rare
Laos Rare
Vietnam Rare
Mexico Rare
Colombia Rare
Costa Rica Rare
Ecuador Rare
Myanmar Elusive
Seychelles Elusive
Guyana Elusive
Bahamas Elusive
Belize Elusive
Cuba Elusive
Dominican Republic Elusive
Guatemala Elusive
Jamaica Elusive
Nicaragua Elusive
Panama Elusive
Suriname Elusive
Trinidad and Tobago Elusive
Solomon Islands Elusive
Haiti Elusive
Honduras Elusive
Micronesia Farflung
Palau Farflung
Bangladesh Farflung
France Farflung