| 1,024 | Countries that Block Other Countries from Water |
| 1,022 | River Delta by Country #1 |
| 1,006 | Cities on Random European Rivers on a Map |
| 1,001 | Countries Bordering Adriatic Sea - Map Quiz |
| 991 | Play Scrabble by Guessing Species of Walrus |
| 988 | Lakes - Sudden Death |
| 974 | U.S. Cities Separated By Rivers |
| 966 | Landlocked "Seas" |
| 957 | Five Biggest Countries by River |
| 957 | German Rivers on a Map |
| 953 | Longest rivers in Europe |
| 951 | U.S. States and Rivers that Share a Name - Sudden Death |
| 950 | 10 Largest Lakes in North America |
| 946 | Anagrams - Rivers |
| 911 | Lakes on World Map |
| 909 | Countries whose Coastline is longer than its Borders |
| 879 | Rivers running through capital cities |
| 871 | Biggest rivers in Serbia |
| 867 | Canadian Lakes on a Map |
| 857 | Answers Contain Lake Quiz |
| 855 | Caspian Sea General Knowledge |
| 852 | Top 5 Longest Rivers by Continent |
| 845 | Cities on the North Sea by a Clue |
| 834 | Niger River Countries |
| 829 | Marine Food Chain - "Map" Quiz |
| 826 | Name a River A-Z |
| 822 | Countries with Longest Coastlines by Continent |
| 797 | Oceans, Seas, Gulfs, Bays & Straits of the World (A-Z) |
| 796 | Countries with the highest coastline:area ratio |
| 791 | Ocean Currents on the Map |
| 787 | Rivers that Form State Borders |
| 784 | A River Doesn't Run Through It |
| 780 | Lakes by Shape |
| 774 | Longest Rivers in the United States in the Map Quiz |
| 763 | Great Lakes States and Provinces With an Empty Map |
| 754 | Top 10 Deepest Lakes In The World |
| 746 | Coasts of the World |
| 733 | States With a Coastline - Sudden Death |
| 735 | Rivers of the 25 Largest American Cities |
| 720 | US States with NO coastline |
| 719 | Name the Gulf or Bay from a Clue |
| 704 | Rivers through UK Cities and Towns |
| 684 | Name a Sea or Lake A-Z |
| 679 | Notable Capes on the Map |
| 663 | 10 Longest Rivers in Africa |
| 661 | US states by coastline |
| 657 | 10 Rivers in Bosnia and Herzegovina |
| 657 | Cities on Rivers in the United States on a Map |
| 653 | Largest River Drainage Basins |
| 645 | Rivers With Colorful Names 🏞️ |
| 634 | Famous Rivers in India Quiz |
| 627 | Countries by Sea |
| 625 | African West Coast on a Map |
| 623 | Countries without river - Sudden Death |
| 620 | Which River Flows Through This City? |
| 617 | Seas of Asia |
| 611 | Sources of Rivers #2 |
| 606 | All Cities on the Baltic Sea Coast |
| 604 | Countries along Americas coastline |
| 604 | Name a Valid U.S. State on That River |
| 601 | Biggest Countries by Water Area |
| 598 | Islands with Longest Maximum Distances to the Sea |
| 586 | Rivers by Satellite |
| 577 | Cities on the Baltic Sea by a Clue |
| 566 | U.S. States with No River Borders |
| 560 | Anagrams - Seas |
| 557 | Arctic... or Antarctic? |
| 551 | Famous Ocean Liners |
| 536 | Colorado Rivers Map Quiz |
| 535 | Countries with Lowest Coast-to-Area Ratio |
| 533 | States that touch Río Grande |
| 523 | Rivers going through European Capital Cities: name the Capital |
| 523 | Famous Coasts of the World and History |
| 522 | Countries Named After Rivers |
| 500 | Largest Peninsula by Continent |
| 492 | Countries with at least 2 separate continental coastlines |
| 489 | World Cities on Major Rivers |
| 488 | Which European Lake? |
| 485 | Biggest Black Sea Cities Quiz |
| 485 | River Decoder |
| 477 | Smaller than Oceans, Bigger than Lakes |
| 476 | Cities on the Indian Ocean by a Clue |
| 475 | African Coastline Countries not bordering any Landlocked Countries |
| 470 | Persian Gulf General Knowledge |
| 470 | Countries with Shortest Coastline |
| 464 | English Lake District:16 Largest (with map) |
| 445 | Red Sea countries |
| 446 | Famous Bays of the World on the Map |
| 441 | 19 Countries with Shortest Coastlines |
| 440 | Lakes by Country |
| 439 | Countries with more than 1% of the Global Coastline |
| 439 | Austin Bergstrom (AUS) Int'l Airport Destinations |
| 438 | Famous Ships |
| 436 | Countries with the Most Rivers Over 600 Km |
| 433 | Countries with the longest coastlines |
| 431 | Longest Rivers in Countries 2 |
| 430 | Countries whose Coastline is shorter than all its Borders |
| 429 | Mississippi, Missouri and Ohio River States Empty Map Quiz |
| 426 | Countries that Don't Drain Out to Sea |
| 423 | Scottish Lochs Map (easier version) |
| 416 | Biggest Seas of the Arctic Ocean |
| 416 | Sea of Japan General Knowledge |
| 408 | Longest Rivers by Continent |
| 408 | Capitals on The Atlantic Ocean |
| 406 | American Cities on the Pacific Ocean by a Clue |
| 397 | Cities on the Great Lakes by a Clue |
| 395 | UK Coastal Towns and Cities (with map) |
| 391 | Rivers of Germany |
| 390 | Swiss Rivers on a Map |
| 387 | Rivers Forming US State Borders |
| 379 | 15 largest landlocked countries |
| 378 | Scottish Lochs Map (extreme) |
| 369 | Cities on the South China Sea by a Clue |
| 368 | Rhine cities |
| 368 | Mal's Capital City Rivers |
| 362 | Countries by Lake |
| 358 | Austrian Rivers on a Map |
| 354 | States in USA With Coastline |
| 351 | Gulfs and Bays of the United States on the Map |
| 351 | Red Sea General Knowledge |
| 350 | Bodies of Water by Letter - A |
| 350 | Biggest Cities in the Mississippi River Basin on a Map |
| 349 | Rivers by number of countries they pass through... |
| 338 | Countries That Border More Than One Ocean |
| 337 | Missouri River States Empty Map Quiz |
| 332 | Largest River by US State Capital City |
| 331 | Countries Bordering the Coral Sea |
| 329 | Bodies of Water A-Z |
| 328 | Lakes - Multiple Choice |
| 325 | Countries of Europe by Rivers in 30 Seconds |
| 325 | Cities on the Caribbean Sea by a Clue |
| 325 | Biggest Cities On Danube |
| 325 | Longest rivers in Russia |
| 324 | Countries with the Longest Coastlines A-Z |
| 323 | Famous Coasts (Name the Country) |
| 319 | Capitals on the Baltic Sea |
| 312 | Countries with the Longest Coastlines Bordering Each Other |
| 312 | Which African Lake? |
| 311 | Straits and Chokepoints on a Map |
| 310 | Countries with over 100,000km of Coastline - QWO1A #6 |
| 309 | Major Cities on the Danube on a Map |
| 308 | US States Named for Rivers |
| 306 | US States by coastline |
| 305 | Click the Correct Ocean by Sea |
| 304 | Countries of the Biggest Lakes That Border Several Countries |
| 300 | Trace The Coast And International Borders Of Mexico |
| 294 | Longest River By Continent |
| 291 | Biggest Country by Lake |
| 291 | Biggest Cities On Rhine |
| 286 | South China Sea General Knowledge |
| 286 | Countries Across the Ocean from the United Kingdom |
| 286 | Click the Country - River |
| 283 | Longest Rivers in Ireland |
| 282 | Coastal Capitals - Sudden Death |
| 280 | Countries with Land Area below Sea Level |
| 279 | Click the Seven Seas |
| 279 | Biggest City by Lake |
| 276 | Bodies of Water by Letter - B |
| 276 | Rivers of the UK - sudden death |
| 275 | Atlantic Coast Cities by Pictures |
| 270 | Every City on the Great Lakes on a Map |
| 268 | Answers Contain "Ocean" |
| 265 | Every U.S. State Border River |
| 259 | Countries with the smallest coastlines |
| 254 | River to Country - Tile Select |
| 254 | Top 20 Countries by adjusted Coastline/Area ratio |
| 250 | United States of America with the longest coastlines |
| 248 | Random Lakes by Clue |
| 245 | Most Populous River Deltas |
| 244 | Countries in the "Water Hemisphere" of the Earth |
| 241 | Five Countries With Longest Coastline Per Continent |
| 241 | seven rivers of india |
| 234 | rivers in belgium |
| 234 | Lakes on Borders |
| 230 | Bodies of Water by Letter - M |
| 226 | Longest Rivers in a Single Country |
| 224 | Great Lakes Quiz |
| 222 | Lake Superlatives Quiz |
| 218 | Countries With Colour Rivers |
| 216 | Closest Capitals by Lake Quiz |
| 215 | Capitals Located on the Same River |
| 215 | U.S. States Closest to the Atlantic Ocean Without a Shoreline |
| 213 | Top 10 Continental Countries by coastline |
| 213 | Bodies of Water from Odessa to the Ocean |
| 210 | Countries that Border Multiple Oceans |
| 209 | Flags of Red Sea Countries |
| 205 | Biggest Cities on the Mississippi River on a Map |
| 205 | River Delta by Country #2 |
| 204 | Countries with the Largest Lakes |
| 204 | Gulfs by Clue |
| 195 | Coasts of Florida |
| 193 | Biggest Seas of Europe |
| 191 | Trace The Coast And International Borders Of Brazil |
| 191 | Longest Rivers In All Countries |
| 190 | 25 longest rivers in Europe |
| 190 | Bodies of Water around Africa |
| 190 | Countries of Asia by Rivers in 30 Seconds |
| 189 | Columbia River Basin on a Map |
| 188 | A Quiz About Canals |
