| 137,065 | World's Longest Rivers |
| 105,071 | Famous Rivers |
| 100,829 | 100 Rivers on a World Map |
| 87,966 | World's Longest Rivers on a Map |
| 76,926 | Countries With No Rivers |
| 66,350 | Rivers of the United States |
| 65,652 | 100 Longest Rivers in Europe - with a Map |
| 62,300 | Name a Valid Country on Each River |
| 56,585 | Rivers of Europe Quiz |
| 56,066 | Mississippi River States Empty Map Quiz |
| 53,328 | Mekong River Countries Empty Map Quiz |
| 52,885 | Biggest City by River |
| 50,766 | Nile River Basin Countries on a Map |
| 48,345 | Capitals by River |
| 45,606 | Rivers and Lakes whose Names are Countries |
| 40,390 | Rivers that Flow through the Most Countries |
| 39,748 | Most Populous River Basins |
| 39,652 | Major U.S. Rivers with State Names |
| 39,372 | Amazon... or Nile? |
| 39,241 | 10 Longest Rivers in the United States |
| 38,095 | 50 Rivers on a World Map |
| 35,865 | City to River #1 |
| 33,336 | Rivers in History |
| 32,802 | Rivers A-Z |
| 31,741 | Rivers by City |
| 30,510 | UK Rivers Map Quiz |
| 26,117 | City to River #2 - Difficult |
| 22,752 | Texas Rivers Map Quiz |
| 22,711 | Rivers on Borders |
| 18,402 | U.S. State Capitals Closest to the Mississippi River |
| 16,040 | Largest Rivers by Discharge |
| 14,997 | U.S. States by Five Longest Rivers |
| 13,819 | Longest Rivers in the UK |
| 9,778 | 100 Longest Rivers in North America - with a Map |
| 6,812 | Ultimate Rivers of the UK (with map) |
| 5,853 | Longest U.S. Rivers on a Map |
| 4,898 | 100 Longest Rivers in the World - with a Map |
| 4,344 | 100 Longest Rivers in South America - with a Map |
| 4,314 | 100 Longest Rivers in Africa - with a Map |
| 4,101 | Largest River Basins by Area on a Map |
| 3,989 | 100 Longest Rivers in Asia - with a Map |
| 3,957 | Oregon Rivers - Map Quiz |
| 3,949 | River Deltas on the Map |
| 3,850 | German Rivers on a Map |
| 3,710 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,141 | Longest Rivers - Sudden Death |
| 3,078 | Name a Valid Country on Each River |
| 3,038 | UK Cities, Towns & their Rivers (with map) |
| 2,972 | 50 Longest Rivers in the World |
| 2,890 | Danube River Basin Countries on a Map |
| 2,819 | World's Dirtiest Rivers |
| 2,770 | Five Longest Rivers by Continent |
| 2,727 | World's Longest Rivers |
| 2,682 | European Rivers - Sudden Death |
| 2,325 | Sequential US Rivers and Cities |
| 2,318 | Rivers in the Map of Europe |
| 2,158 | Rivers of Great Britain |
| 2,133 | Rivers - Sudden Death |
| 2,101 | Longest rivers in Poland |
| 2,077 | Longest Rivers in Countries |
| 2,012 | Name a Valid River |
| 1,893 | Fill the world map by naming rivers |
| 1,887 | 100 Longest Rivers in Oceania - with a Map |
| 1,787 | Cross the River |
| 1,761 | Rivers by Country |
| 1,659 | Mississippi Basin Rivers on a Map - Extreme |
| 1,562 | World Rivers Map Quiz |
| 1,546 | Countries with the most long rivers |
| 1,525 | Mississippi-Missouri Basin States and Provinces |
| 1,499 | Rivers of Russia |
| 1,438 | Sequential Cities in the Nile River Basin |
| 1,371 | Multiple Capitals on Rivers |
| 1,340 | Croatian rivers |
| 1,326 | British Rivers to Cities — Click Quiz #1 |
| 1,249 | Cities in the Colorado River Basin on a Map |
| 1,225 | Countries by River |
| 1,190 | River Mouths on the Map |
| 1,170 | Largest River Basins of Europe on a Map |
| 1,147 | Countries named after rivers |
| 1,123 | 50 Biggest Cities along the Rhine River with a Blank Map |
| 1,117 | Longest Rivers in the US |
| 1,111 | Biggest rivers in the world by drainage basins area |
| 1,050 | Countries with the Most Long Rivers |
| 1,022 | River Delta by Country #1 |
| 1,006 | Cities on Random European Rivers on a Map |
| 974 | U.S. Cities Separated By Rivers |
| 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 |
| 946 | Anagrams - Rivers |
| 879 | Rivers running through capital cities |
| 871 | Biggest rivers in Serbia |
| 852 | Top 5 Longest Rivers by Continent |
| 834 | Niger River Countries |
| 826 | Name a River A-Z |
| 787 | Rivers that Form State Borders |
| 784 | A River Doesn't Run Through It |
| 774 | Longest Rivers in the United States in the Map Quiz |
| 735 | Rivers of the 25 Largest American Cities |
| 704 | Rivers through UK Cities and Towns |
| 663 | 10 Longest Rivers in Africa |
| 657 | Cities on Rivers in the United States on a Map |
| 657 | 10 Rivers in Bosnia and Herzegovina |
| 653 | Largest River Drainage Basins |
| 644 | Rivers With Colorful Names 🏞️ |
| 634 | Famous Rivers in India Quiz |
| 623 | Countries without river - Sudden Death |
| 620 | Which River Flows Through This City? |
| 611 | Sources of Rivers #2 |
| 604 | Name a Valid U.S. State on That River |
| 586 | Rivers by Satellite |
| 566 | U.S. States with No River Borders |
| 536 | Colorado Rivers Map Quiz |
| 533 | States that touch Río Grande |
| 523 | Rivers going through European Capital Cities: name the Capital |
| 522 | Countries Named After Rivers |
| 489 | World Cities on Major Rivers |
| 485 | River Decoder |
| 439 | Austin Bergstrom (AUS) Int'l Airport Destinations |
| 436 | Countries with the Most Rivers Over 600 Km |
| 431 | Longest Rivers in Countries 2 |
| 429 | Mississippi, Missouri and Ohio River States Empty Map Quiz |
| 408 | Longest Rivers by Continent |
| 391 | Rivers of Germany |
| 390 | Swiss Rivers on a Map |
| 387 | Rivers Forming US State Borders |
| 368 | Rhine cities |
| 368 | Mal's Capital City Rivers |
| 358 | Austrian Rivers on a Map |
| 350 | Biggest Cities in the Mississippi River Basin on a Map |
| 349 | Rivers by number of countries they pass through... |
| 337 | Missouri River States Empty Map Quiz |
| 332 | Largest River by US State Capital City |
| 325 | Countries of Europe by Rivers in 30 Seconds |
| 325 | Longest rivers in Russia |
| 325 | Biggest Cities On Danube |
| 309 | Major Cities on the Danube on a Map |
| 308 | US States Named for Rivers |
| 294 | Longest River By Continent |
| 291 | Biggest Cities On Rhine |
| 286 | Click the Country - River |
| 283 | Longest Rivers in Ireland |
| 276 | Rivers of the UK - sudden death |
| 265 | Every U.S. State Border River |
| 254 | River to Country - Tile Select |
| 245 | Most Populous River Deltas |
| 241 | seven rivers of india |
| 234 | rivers in belgium |
| 226 | Longest Rivers in a Single Country |
| 218 | Countries With Colour Rivers |
| 215 | Capitals Located on the Same River |
| 205 | River Delta by Country #2 |
| 205 | Biggest Cities on the Mississippi River on a Map |
| 191 | Longest Rivers In All Countries |
| 190 | Countries of Asia by Rivers in 30 Seconds |
| 190 | 25 longest rivers in Europe |
| 189 | Columbia River Basin on a Map |
| 177 | 20 longest rivers in Poland |
| 168 | 10 Longest rivers in Canada |
| 168 | Bay, Desert, Lake, Mountain, River or Swamp - US Geography Click Quiz |
| 163 | Major Rivers Sourced on the Tibetan Plateau |
| 158 | Biggest Cities on the Hudson River on a Map |
| 157 | Most Populous Country by River |
| 151 | Biggest Cities on the Ohio River on a Map |
| 150 | US States Named After Rivers |
| 149 | Biggest Cities on the Missouri River on a Map |
| 149 | Rivers of North America: Sudden Death |
| 148 | Ohio River States Empty Map Quiz |
| 146 | Largest City on Each River |
| 132 | Guess the Mystery River |
| 129 | French departments by rivers that flow through them |
| 128 | Biggest Cities on the Arkansas River on a Map |
| 125 | Biggest Cities on the Rio Grande River on a Map |
| 124 | U.S. Presidents From West of the Mississippi River |
| 124 | Mountain, River, or Island? |
| 124 | Ohio River States |
| 115 | Biggest Cities on the Delaware River on a Map |
| 115 | Five Biggest Cities by River |
| 112 | Random River by City |
| 112 | 7 Longest Rivers in Southern Africa |
| 111 | Flags of the Danube River Countries |
| 110 | Longest River by Letter |
| 107 | Biggest Cities on the Tennessee River on a Map |
| 106 | Random River to Country |
| 104 | Longest European Rivers With a National Capital on Their Shore |
| 103 | Longest Rivers Entirely in the United States |
| 103 | Biggest Cities on the Columbia River on a Map |
| 102 | Name a Valid U.S. State - Rivers and Basins |
| 100 | Biggest Cities on the Colorado River on a Map |
| 98 | Longest Rivers in the EU |
| 96 | Largest cities of the Rhine river basin on a map |
| 94 | Congo River Basin Countries |
| 93 | Longest World Rivers With a National Capital On Their Shore |
| 91 | Biggest Cities on the Snake River on a Map |
| 90 | Rivers that flow through four or more countries |
| 90 | Niger River Countries |
| 89 | Rivers By Picture |
| 89 | Biggest Cities on the Red River on a Map |
| 88 | Asian Countries Without Rivers |
