| 121,784 | World's Longest Rivers |
| 104,678 | Famous Rivers |
| 99,010 | 100 Rivers on a World Map |
| 87,150 | World's Longest Rivers on a Map |
| 76,195 | Countries With No Rivers |
| 65,814 | Rivers of the United States |
| 65,108 | 100 Longest Rivers in Europe - with a Map |
| 61,485 | Name a Valid Country on Each River |
| 55,864 | Rivers of Europe Quiz |
| 55,758 | Mississippi River States Empty Map Quiz |
| 53,107 | Mekong River Countries Empty Map Quiz |
| 52,747 | Biggest City by River |
| 50,414 | Nile River Basin Countries on a Map |
| 48,265 | Capitals by River |
| 45,279 | Rivers and Lakes whose Names are Countries |
| 40,205 | Rivers that Flow through the Most Countries |
| 39,596 | Most Populous River Basins |
| 39,460 | Major U.S. Rivers with State Names |
| 39,164 | Amazon... or Nile? |
| 38,937 | 10 Longest Rivers in the United States |
| 37,196 | 50 Rivers on a World Map |
| 35,780 | City to River #1 |
| 33,031 | Rivers in History |
| 32,735 | Rivers A-Z |
| 31,669 | Rivers by City |
| 30,307 | UK Rivers Map Quiz |
| 25,886 | City to River #2 - Difficult |
| 22,733 | Texas Rivers Map Quiz |
| 22,658 | Rivers on Borders |
| 18,320 | U.S. State Capitals Closest to the Mississippi River |
| 15,960 | Largest Rivers by Discharge |
| 14,541 | U.S. States by Five Longest Rivers |
| 13,755 | Longest Rivers in the UK |
| 9,642 | 100 Longest Rivers in North America - with a Map |
| 6,746 | Ultimate Rivers of the UK (with map) |
| 5,762 | Longest U.S. Rivers on a Map |
| 4,404 | 100 Longest Rivers in the World - with a Map |
| 4,157 | 100 Longest Rivers in South America - with a Map |
| 4,155 | 100 Longest Rivers in Africa - with a Map |
| 4,085 | Largest River Basins by Area on a Map |
| 3,942 | Oregon Rivers - Map Quiz |
| 3,921 | 100 Longest Rivers in Asia - with a Map |
| 3,902 | River Deltas on the Map |
| 3,810 | German Rivers on a Map |
| 3,708 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,052 | Name a Valid Country on Each River |
| 3,033 | Longest Rivers - Sudden Death |
| 3,015 | UK Cities, Towns & their Rivers (with map) |
| 2,961 | 50 Longest Rivers in the World |
| 2,866 | Danube River Basin Countries on a Map |
| 2,809 | World's Dirtiest Rivers |
| 2,751 | Five Longest Rivers by Continent |
| 2,726 | World's Longest Rivers |
| 2,625 | European Rivers - Sudden Death |
| 2,312 | Rivers in the Map of Europe |
| 2,307 | Sequential US Rivers and Cities |
| 2,155 | Rivers of Great Britain |
| 2,098 | Longest rivers in Poland |
| 2,096 | Rivers - Sudden Death |
| 2,067 | Longest Rivers in Countries |
| 1,994 | Name a Valid River |
| 1,873 | Fill the world map by naming rivers |
| 1,794 | 100 Longest Rivers in Oceania - with a Map |
| 1,780 | Cross the River |
| 1,760 | Rivers by Country |
| 1,644 | Mississippi Basin Rivers on a Map - Extreme |
| 1,559 | World Rivers Map Quiz |
| 1,537 | Countries with the most long rivers |
| 1,515 | Mississippi-Missouri Basin States and Provinces |
| 1,493 | Rivers of Russia |
| 1,429 | Sequential Cities in the Nile River Basin |
| 1,366 | Multiple Capitals on Rivers |
| 1,330 | Croatian rivers |
| 1,310 | British Rivers to Cities — Click Quiz #1 |
| 1,237 | Cities in the Colorado River Basin on a Map |
| 1,219 | Countries by River |
| 1,172 | River Mouths on the Map |
| 1,152 | Largest River Basins of Europe on a Map |
| 1,140 | Countries named after rivers |
| 1,116 | Longest Rivers in the US |
| 1,108 | Biggest rivers in the world by drainage basins area |
| 1,105 | 50 Biggest Cities along the Rhine River with a Blank Map |
| 1,047 | Countries with the Most Long Rivers |
| 996 | Cities on Random European Rivers on a Map |
| 981 | River Delta by Country #1 |
| 966 | U.S. Cities Separated By Rivers |
| 947 | German Rivers on a Map |
| 947 | Five Biggest Countries by River |
| 944 | Longest rivers in Europe |
| 940 | U.S. States and Rivers that Share a Name - Sudden Death |
| 937 | Anagrams - Rivers |
| 870 | Rivers running through capital cities |
| 866 | Biggest rivers in Serbia |
| 849 | Top 5 Longest Rivers by Continent |
| 833 | Niger River Countries |
| 812 | Name a River A-Z |
| 785 | Rivers that Form State Borders |
| 784 | A River Doesn't Run Through It |
| 774 | Longest Rivers in the United States in the Map Quiz |
| 726 | Rivers of the 25 Largest American Cities |
| 701 | Rivers through UK Cities and Towns |
| 661 | 10 Longest Rivers in Africa |
| 651 | 10 Rivers in Bosnia and Herzegovina |
| 650 | Largest River Drainage Basins |
| 650 | Cities on Rivers in the United States on a Map |
| 633 | Famous Rivers in India Quiz |
| 631 | Rivers With Colorful Names 🏞️ |
| 614 | Which River Flows Through This City? |
| 611 | Countries without river - Sudden Death |
| 611 | Sources of Rivers #2 |
| 600 | Name a Valid U.S. State on That River |
| 574 | Rivers by Satellite |
| 564 | U.S. States with No River Borders |
| 534 | Colorado Rivers Map Quiz |
| 531 | States that touch Río Grande |
| 523 | Rivers going through European Capital Cities: name the Capital |
| 518 | Countries Named After Rivers |
| 488 | World Cities on Major Rivers |
| 483 | River Decoder |
| 437 | Austin Bergstrom (AUS) Int'l Airport Destinations |
| 432 | Countries with the Most Rivers Over 600 Km |
| 431 | Longest Rivers in Countries 2 |
| 427 | Mississippi, Missouri and Ohio River States Empty Map Quiz |
| 407 | Longest Rivers by Continent |
| 386 | Rivers of Germany |
| 384 | Rivers Forming US State Borders |
| 383 | Swiss Rivers on a Map |
| 368 | Rhine cities |
| 367 | Mal's Capital City Rivers |
| 353 | Austrian Rivers on a Map |
| 348 | Rivers by number of countries they pass through... |
| 342 | Biggest Cities in the Mississippi River Basin on a Map |
| 337 | Missouri River States Empty Map Quiz |
| 324 | Countries of Europe by Rivers in 30 Seconds |
| 323 | Biggest Cities On Danube |
| 322 | Largest River by US State Capital City |
| 321 | Longest rivers in Russia |
| 307 | US States Named for Rivers |
| 305 | Major Cities on the Danube on a Map |
| 291 | Longest River By Continent |
| 288 | Biggest Cities On Rhine |
| 283 | Longest Rivers in Ireland |
| 282 | Click the Country - River |
| 269 | Rivers of the UK - sudden death |
| 259 | Every U.S. State Border River |
| 247 | River to Country - Tile Select |
| 244 | Most Populous River Deltas |
| 239 | seven rivers of india |
| 234 | rivers in belgium |
| 224 | Longest Rivers in a Single Country |
| 216 | Countries With Colour Rivers |
| 214 | Capitals Located on the Same River |
| 210 | Name the City on the River (Great Britain & Ireland) |
| 204 | Biggest Cities on the Mississippi River on a Map |
| 194 | River Delta by Country #2 |
| 189 | 25 longest rivers in Europe |
| 189 | Columbia River Basin on a Map |
| 188 | Countries of Asia by Rivers in 30 Seconds |
| 186 | Longest Rivers In All Countries |
| 177 | 20 longest rivers in Poland |
| 168 | 10 Longest rivers in Canada |
| 166 | Bay, Desert, Lake, Mountain, River or Swamp - US Geography Click Quiz |
| 161 | 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 |
| 148 | Ohio River States Empty Map Quiz |
| 146 | Largest City on Each River |
| 145 | Brazilian Rivers |
| 145 | Rivers of North America: Sudden Death |
| 131 | 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 | Ohio River States |
| 122 | Mountain, River, or Island? |
| 115 | Five Biggest Cities by River |
| 115 | Biggest Cities on the Delaware River on a Map |
| 112 | 7 Longest Rivers in Southern Africa |
| 111 | Random River by City |
| 111 | Flags of the Danube River Countries |
| 109 | Longest River by Letter |
| 107 | Biggest Cities on the Tennessee River on a Map |
| 104 | Random River to Country |
| 103 | Longest Rivers Entirely in the United States |
| 103 | Biggest Cities on the Columbia River on a Map |
| 103 | Longest European Rivers With a National Capital on Their Shore |
| 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 |
| 94 | Congo River Basin Countries |
| 93 | Longest World Rivers With a National Capital On Their Shore |
| 92 | Largest cities of the Rhine river basin on a map |
| 91 | Biggest Cities on the Snake River on a Map |
| 90 | Rivers that flow through four or more countries |
| 90 | Niger River Countries |
| 89 | Biggest Cities on the Red River on a Map |
