| List | Missing Item | Relationship |
|---|
| Laos, Latvia, Lebanon, Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg | |
| Arizona, Colorado, Utah | |
| Chad, Fiji, Iran, Iraq, Laos, Mali, Oman, Peru, Togo | |
| Erie, Michigan, Ontario, Superior | |
| China, France, Russia, United States | |
| Colossae, Ephesus, Galatia, Philippi, Rome, Thessalonica | |
| Afghanistan, Kazakhstan, Kyrgyzstan, Pakistan, Turkmenistan, Uzbekistan | |
| New Brunswick, Prince Edward Island | |
| France, Japan and South Korea, South Africa, United States | |
| Albert, Malawi, Tanganyika, Turkana | |
| Algeria, Angola, Ecuador, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, UAE, Venezuela | |
| Mumbai, Delhi, Bangalore, Chennai | |
| Estonia, Latvia | |
| New South Wales, South Australia, Tasmania, Victoria, Western Australia | |
| Cambridge, Hanover, Ithaca, New Haven, New York City, Philadelphia, Providence | |
| Bloemfontein, Pretoria | |
| Canada, France, Germany, Japan, Russia, United Kingdom, United States | |
| Hokkaido, Kyushu, Shikoku | |
| Arctic, Atlantic, Pacific, Southern | |
| Alexandria, Babylon, Ephesus, Halicarnassus, Olympia, Rhodes | |
| Close, but it's technically not part of that particular three-member group. | |
|
Eurovision Host Cities 
Largest Second Place Cities 
Progressively Tougher World Capitals
