Even among our absurdly well traveled customers, friends and expedition leader colleagues, we’re betting no one has been to nearly all 50 islands featured in Judith Schalansky’s beguiling collection of maps and essays. If you’ve been to more than 14, drop us a line. You might win the prize (a $100 gift certificate) and our eternal admiration.

ARCTIC OCEAN

1.Lonely Island (Uyedineniya Island)

2.Bear Island (Bjorn Island, Svalbard)

3.Rudolf Island (Franz Josef Land)

ATLANTIC OCEAN

4.St Kilda

5.Ascension Island

6.Brava, Cape Verde Islands

7.Annobón

8.St. Helena

9.Trindade

10.Bouvet Island

11.Tristan da Cunha

12.Southern Thule (South Sandwich Islands)

INDIAN OCEAN

13.Saint Paul Island

14.South Keeling Islands

15.Possession Island (Crozet Islands)

16.Diego Garcia

17.Amsterdam Island

18.Christmas Island

19.Tromelin

PACIFIC OCEAN

20.Napuka (Tuamotu Archipelago)

21.Rapa Iti (Austral Islands)

22.Robinson Crusoe Island (Juan Fernandez Islands)

23.Howland Island

24.Macquarie Island

25.Fangataufa (Tuamotos)

26.Atlasov Island (Kuril Islands)

27.Taongi Atoll (Marshall Islands)

28.Norfolk Island

29.Pukapuka (Cook Islands)

30.Antipodes Island

31.Floreana (Galapagos)

32.Banaba (Kiribati)

33.Campbell Island (New Zealand)

34.Pingelap (Caroline Islands)

35.Easter Island

36.Pitcairn Island

37.Semisopochnoi (Aleutian Islands)

38.Clipperton Island

39.Raoul Island (Kermadec Islands)

40.Socorro Island (Revillagigedo Islands)

41.Iwo Jima

42.St. George Island (Pribilof Islands)

43.Tikopia (Solomon Islands)

44.Pagan (Mariana Islands)

45.Cocos Island

46.Takuu (Papua New Guinea)

ANTARCTIC OCEAN

47.Laurie Island (South Orkney)

48.Deception Island (Shetland Islands)

49.Franklin Island (Ross Sea)

50.Peter I Island (Bellingshausen Sea)