| 411,877 | Countries with the Longest Coastlines |
| 162,743 | Draw All Country Borders and Borderless Countries |
| 155,401 | Seas of the World |
| 138,094 | Top 10 European Countries by Coastline |
| 134,719 | Seas on the World Map |
| 121,801 | World's Longest Rivers |
| 115,836 | Countries That Touch the Baltic Sea |
| 115,140 | Name a Valid Country Bordering Each Sea |
| 115,014 | Five Countries with the Longest Coastline by Continent |
| 104,683 | Famous Rivers |
| 99,080 | 100 Rivers on a World Map |
| 96,291 | Top 10 Asian Countries by Coastline |
| 96,088 | Seas that Touch the Most Countries |
| 92,129 | American Countries With No Atlantic Coastline |
| 89,163 | Biggest Lakes in the World |
| 88,191 | Top 10 American Countries by Coastline |
| 87,166 | World's Longest Rivers on a Map |
| 86,776 | North Sea Countries |
| 84,481 | Seas of Europe |
| 78,280 | Trace the Coast of Europe with a Map |
| 76,210 | Countries With No Rivers |
| 75,333 | Bay of Bengal Countries With an Empty Map |
| 74,418 | Countries Farthest From the Sea |
| 71,556 | Bodies of Water by Satellite Image #1 |
| 70,928 | Countries That Touch the Adriatic Sea |
| 67,035 | Countries with the Shortest Coastlines |
| 66,730 | Countries Closest to the Aegean Sea |
| 65,821 | Rivers of the United States |
| 65,695 | African Great Lakes |
| 65,142 | Countries That Touch the Red Sea |
| 65,123 | 100 Longest Rivers in Europe - with a Map |
| 63,241 | Caspian Sea Countries |
| 61,506 | Name a Valid Country on Each River |
| 60,581 | African Great Lake Countries with an Empty Map |
| 60,431 | Black Sea Countries |
| 59,058 | Trace the Coast of Afro-Eurasia with a Map |
| 57,585 | South China Sea Countries |
| 57,441 | Capital Cities by Body of Water |
| 55,878 | Rivers of Europe Quiz |
| 55,761 | Mississippi River States Empty Map Quiz |
| 55,418 | Trace the Coast of the Americas with a Map |
| 55,337 | Trace the Coast of the World Map |
| 53,110 | Mekong River Countries Empty Map Quiz |
| 52,751 | Biggest City by River |
| 51,235 | Bodies of Water on the World Map |
| 50,756 | Top 10 U.S. States with the Longest Coastline |
| 50,422 | Nile River Basin Countries on a Map |
| 50,231 | Great Lakes Quiz |
| 48,686 | Sea in the Answers |
| 48,269 | Capitals by River |
| 47,860 | Top 10 African Countries by Coastline |
| 45,287 | Rivers and Lakes whose Names are Countries |
| 44,410 | Cities on a Map of the Great Lakes |
| 40,209 | Rivers that Flow through the Most Countries |
| 39,599 | Most Populous River Basins |
| 39,461 | Major U.S. Rivers with State Names |
| 39,165 | Amazon... or Nile? |
| 38,943 | 10 Longest Rivers in the United States |
| 37,977 | Draw the Coast of the Mediterranean on the Map |
| 37,230 | 50 Rivers on a World Map |
| 35,985 | Bodies of Water around the Arabian Peninsula |
| 35,782 | City to River #1 |
| 33,036 | Rivers in History |
| 32,737 | Rivers A-Z |
| 31,816 | Countries with the Most Lakes Over 100 Km² |
| 31,669 | Rivers by City |
| 30,311 | UK Rivers Map Quiz |
| 30,116 | Gulfs and Bays on the World Map |
| 29,777 | Largest Lakes in the United States on a Map |
| 28,864 | States and Provinces that Touch the Great Lakes |
| 28,518 | Bodies of Water by Cities |
| 28,489 | Countries with the Longest Coastline Bordering Each Other |
| 27,852 | Trace the Coast and International Borders of the USA |
| 26,641 | Name the Sea from a Clue |
| 26,491 | Cities on the Mediterranean Sea by a Clue |
| 25,889 | City to River #2 - Difficult |
| 24,966 | The Five Oceans Map Quiz |
| 23,958 | Famous Lakes Quiz |
| 23,143 | Countries by Coastline Per Capita |
| 22,878 | Countries Bordering the Four Color Seas |
| 22,733 | Texas Rivers Map Quiz |
| 22,658 | Rivers on Borders |
| 22,180 | Indian Ocean General Knowledge |
| 21,195 | Atlantic Ocean General Knowledge |
| 21,044 | U.S. State Capitals Closest to the Great Lakes |
| 20,835 | U.S. States with Shortest Maximum Distances to the Ocean |
| 19,631 | Bodies of Water by Satellite Image #2 |
| 19,200 | Lakes in the United States by Clue |
| 18,320 | U.S. State Capitals Closest to the Mississippi River |
| 18,213 | U.S. States Bordering the Great Lakes |
| 15,963 | Largest Rivers by Discharge |
| 14,545 | U.S. States by Five Longest Rivers |
| 13,756 | Longest Rivers in the UK |
| 10,734 | Huge List of Famous Lakes |
| 9,643 | 100 Longest Rivers in North America - with a Map |
| 8,545 | Which Great Lake? – Click Quiz |
| 7,952 | Seas of the World - Map Quiz |
| 7,144 | Straits on the World Map |
| 6,746 | Ultimate Rivers of the UK (with map) |
| 6,439 | Great Lakes - Map Quiz |
| 5,762 | Longest U.S. Rivers on a Map |
| 5,510 | European Bodies of Water (with Map!) |
| 5,280 | Five Countries with the Shortest Coastline by Continent |
| 4,616 | Baltic Sea Countries with an Empty Map |
| 4,410 | 100 Longest Rivers in the World - with a Map |
| 4,380 | US States along the coastline and border |
| 4,174 | Countries with a Longer Coastline than Their Neighbors |
| 4,158 | 100 Longest Rivers in South America - with a Map |
| 4,155 | 100 Longest Rivers in Africa - with a Map |
| 4,086 | Largest River Basins by Area on a Map |
| 3,971 | Trace the coast of the world (Hard(no map)) |
| 3,944 | Oregon Rivers - Map Quiz |
| 3,923 | 100 Longest Rivers in Asia - with a Map |
| 3,904 | River Deltas on the Map |
| 3,814 | German Rivers on a Map |
| 3,773 | Trace the Coast of Europe by Guessing the Biggest Cities |
| 3,708 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,649 | Countries Closest to the Red Sea |
| 3,052 | Name a Valid Country on Each River |
| 3,034 | Longest Rivers - Sudden Death |
| 3,015 | UK Cities, Towns & their Rivers (with map) |
| 2,961 | 50 Longest Rivers in the World |
| 2,876 | 100 Biggest Natural Lakes in Europe with a Map |
| 2,867 | Danube River Basin Countries on a Map |
| 2,809 | World's Dirtiest Rivers |
| 2,751 | Five Longest Rivers by Continent |
| 2,736 | Biggest countries with the smallest coastline |
| 2,726 | World's Longest Rivers |
| 2,625 | European Rivers - Sudden Death |
| 2,599 | Famous Lakes on a World Map |
| 2,571 | 50 Largest Lakes in the World Quiz |
| 2,427 | Flags of Countries That Border the North Sea |
| 2,340 | Countries Bordering the Aegean Sea - Map Quiz |
| 2,312 | Rivers in the Map of Europe |
| 2,307 | Sequential US Rivers and Cities |
| 2,209 | Landlocked Countries Whose Only Borders are with Countries With Coastlines |
| 2,208 | Countries that Touch the Most Seas |
| 2,155 | Rivers of Great Britain |
| 2,102 | Mainland Countries With the Shortest Coastlines |
| 2,098 | Longest rivers in Poland |
| 2,096 | Rivers - Sudden Death |
| 2,067 | Longest Rivers in Countries |
| 2,057 | Seas - Sudden Death |
| 2,017 | Seas on the Map of Europe |
| 1,994 | Name a Valid River |
| 1,977 | Countries with Two or More Coastlines |
| 1,939 | Countries with shortest coastline |
| 1,879 | Countries with multiple coastlines |
| 1,876 | Seas of the World (hard) |
| 1,873 | Countries With Highest Coast-to-Land-Border Ratio |
| 1,873 | Fill the world map by naming rivers |
| 1,817 | Countries with Longest Maximum Distances to the Ocean |
| 1,800 | 100 Seas of the World by Bordering Sea in 30 seconds |
| 1,801 | 100 Longest Rivers in Oceania - with a Map |
| 1,787 | Countries with the longest Total Borders and Coastline |
| 1,780 | Cross the River |
| 1,760 | Rivers by Country |
| 1,687 | Countries Bordering the Indian Ocean Empty Map Quiz |
| 1,644 | Mississippi Basin Rivers on a Map - Extreme |
| 1,594 | Five Biggest Countries by Sea |
| 1,559 | World Rivers Map Quiz |
| 1,537 | Countries with the most long rivers |
| 1,536 | Biggest World Cities on Lakes |
| 1,515 | Mississippi-Missouri Basin States and Provinces |
| 1,494 | Rivers of Russia |
| 1,429 | Sequential Cities in the Nile River Basin |
| 1,395 | 40 Lakes on the World Map |
| 1,394 | Countries with less than 100km of Coastline |
| 1,371 | All Mediterranean seas |
| 1,366 | Multiple Capitals on Rivers |
| 1,346 | Lakes A-Z |
| 1,332 | Groups of Countries By Bordering Sea #1 |
| 1,331 | Croatian rivers |
| 1,325 | Baltic Sea General Knowledge |
| 1,311 | British Rivers to Cities — Click Quiz #1 |
| 1,307 | Seas of the World |
| 1,289 | Most Populous Countries by Bordering Sea |
| 1,279 | Ultimate "Lake" Geography Quiz |
| 1,271 | Small Countries with the Most Coastline - with Exceptions |
| 1,238 | Cities in the Colorado River Basin on a Map |
| 1,219 | Countries by River |
| 1,212 | Countries without coastline |
| 1,203 | Name a Valid Sea |
| 1,190 | Caribbean Sea General Knowledge |
| 1,187 | Huge List of U.S. Bodies of Water |
| 1,172 | River Mouths on the Map |
| 1,169 | Three Biggest Cities by Body of Water |
| 1,153 | Largest River Basins of Europe on a Map |
| 1,146 | Five Countries With the Longest Coastline by Continent |
| 1,141 | Answers Contain "Bay" |
| 1,141 | Countries named after rivers |
| 1,139 | Black Sea Cities on a Map |
| 1,116 | Longest Rivers in the US |
| 1,108 | Biggest rivers in the world by drainage basins area |
| 1,106 | Largest Countries with the Least Coastline |
| 1,105 | 50 Biggest Cities along the Rhine River with a Blank Map |
| 1,047 | Countries with the Most Long Rivers |
| 1,021 | Countries that Block Other Countries from Water |
| 1,020 | Arctic Ocean General Knowledge |
| 1,016 | Black Sea General Knowledge |
