| 120,668 | World's Longest Rivers |
| 104,331 | Famous Rivers |
| 97,672 | 100 Rivers on a World Map |
| 86,492 | World's Longest Rivers on a Map |
| 75,834 | Countries With No Rivers |
| 65,010 | Rivers of the United States |
| 64,397 | 100 Longest Rivers in Europe - with a Map |
| 60,950 | Name a Valid Country on Each River |
| 55,406 | Mississippi River States Empty Map Quiz |
| 55,370 | Rivers of Europe Quiz |
| 52,816 | Mekong River Countries Empty Map Quiz |
| 52,633 | Biggest City by River |
| 50,011 | Nile River Basin Countries on a Map |
| 48,201 | Capitals by River |
| 45,013 | Rivers and Lakes whose Names are Countries |
| 40,026 | Rivers that Flow through the Most Countries |
| 39,471 | Most Populous River Basins |
| 39,264 | Major U.S. Rivers with State Names |
| 38,957 | Amazon... or Nile? |
| 38,631 | 10 Longest Rivers in the United States |
| 36,531 | 50 Rivers on a World Map |
| 35,710 | City to River #1 |
| 32,791 | Rivers in History |
| 32,631 | Rivers A-Z |
| 31,582 | Rivers by City |
| 30,190 | UK Rivers Map Quiz |
| 25,640 | City to River #2 - Difficult |
| 22,716 | Texas Rivers Map Quiz |
| 22,610 | Rivers on Borders |
| 18,210 | U.S. State Capitals Closest to the Mississippi River |
| 15,887 | Largest Rivers by Discharge |
| 14,000 | U.S. States by Five Longest Rivers |
| 13,725 | Longest Rivers in the UK |
| 9,509 | 100 Longest Rivers in North America - with a Map |
| 6,646 | Ultimate Rivers of the UK (with map) |
| 5,705 | Longest U.S. Rivers on a Map |
| 4,292 | 100 Longest Rivers in the World - with a Map |
| 4,062 | Largest River Basins by Area on a Map |
| 4,049 | 100 Longest Rivers in South America - with a Map |
| 3,938 | 100 Longest Rivers in Africa - with a Map |
| 3,926 | Oregon Rivers - Map Quiz |
| 3,853 | River Deltas on the Map |
| 3,793 | 100 Longest Rivers in Asia - with a Map |
| 3,777 | German Rivers on a Map |
| 3,706 | Major Rivers of the World - Source US Dept of Commerce, NOAA |
| 3,015 | Name a Valid Country on Each River |
| 2,990 | UK Cities, Towns & their Rivers (with map) |
| 2,943 | 50 Longest Rivers in the World |
| 2,935 | Longest Rivers - Sudden Death |
| 2,836 | Danube River Basin Countries on a Map |
| 2,806 | World's Dirtiest Rivers |
| 2,725 | World's Longest Rivers |
| 2,688 | Five Longest Rivers by Continent |
| 2,571 | European Rivers - Sudden Death |
| 2,304 | Rivers in the Map of Europe |
| 2,270 | Sequential US Rivers and Cities |
| 2,149 | Rivers of Great Britain |
| 2,092 | Longest rivers in Poland |
| 2,069 | Rivers - Sudden Death |
| 2,060 | Longest Rivers in Countries |
| 1,984 | Name a Valid River |
| 1,840 | Fill the world map by naming rivers |
| 1,770 | Cross the River |
| 1,756 | Rivers by Country |
| 1,704 | 100 Longest Rivers in Oceania - with a Map |
| 1,632 | Mississippi Basin Rivers on a Map - Extreme |
| 1,559 | World Rivers Map Quiz |
| 1,524 | Countries with the most long rivers |
| 1,500 | Mississippi-Missouri Basin States and Provinces |
| 1,485 | Rivers of Russia |
| 1,416 | Sequential Cities in the Nile River Basin |
| 1,361 | Multiple Capitals on Rivers |
| 1,321 | Croatian rivers |
| 1,302 | British Rivers to Cities — Click Quiz #1 |
| 1,229 | Cities in the Colorado River Basin on a Map |
| 1,216 | Countries by River |
| 1,155 | River Mouths on the Map |
| 1,140 | Largest River Basins of Europe on a Map |
| 1,131 | Countries named after rivers |
| 1,112 | Longest Rivers in the US |
| 1,105 | Biggest rivers in the world by drainage basins area |
| 1,101 | 50 Biggest Cities along the Rhine River with a Blank Map |
| 1,041 | Countries with the Most Long Rivers |
| 994 | Cities on Random European Rivers on a Map |
| 958 | U.S. Cities Separated By Rivers |
| 947 | German Rivers on a Map |
| 944 | Five Biggest Countries by River |
| 943 | Longest rivers in Europe |
| 930 | Anagrams - Rivers |
| 913 | U.S. States and Rivers that Share a Name - Sudden Death |
| 861 | Biggest rivers in Serbia |
| 858 | Rivers running through capital cities |
| 847 | Top 5 Longest Rivers by Continent |
| 833 | Niger River Countries |
| 794 | Name a River A-Z |
| 785 | Rivers that Form State Borders |
| 783 | A River Doesn't Run Through It |
| 773 | Longest Rivers in the United States in the Map Quiz |
| 725 | Rivers of the 25 Largest American Cities |
| 698 | Rivers through UK Cities and Towns |
| 659 | 10 Longest Rivers in Africa |
| 656 | River Delta by Country |
| 649 | Largest River Drainage Basins |
| 645 | 10 Rivers in Bosnia and Herzegovina |
| 637 | Cities on Rivers in the United States on a Map |
| 630 | Famous Rivers in India Quiz |
| 618 | Rivers With Colorful Names 🏞️ |
| 611 | Sources of Rivers #2 |
| 602 | Countries without river - Sudden Death |
| 602 | Which River Flows Through This City? |
| 594 | Name a Valid U.S. State on That River |
| 560 | Rivers by Satellite |
| 559 | U.S. States with No River Borders |
| 529 | States that touch Río Grande |
| 522 | Rivers going through European Capital Cities: name the Capital |
| 510 | Countries Named After Rivers |
| 485 | World Cities on Major Rivers |
| 485 | Colorado Rivers Map Quiz |
| 481 | River Decoder |
| 433 | Austin Bergstrom (AUS) Int'l Airport Destinations |
| 431 | Longest Rivers in Countries 2 |
| 427 | Countries with the Most Rivers Over 600 Km |
| 419 | Mississippi, Missouri and Ohio River States Empty Map Quiz |
| 405 | Longest Rivers by Continent |
| 386 | Rivers of Germany |
| 383 | Rivers Forming US State Borders |
| 376 | Swiss Rivers on a Map |
| 368 | Rhine cities |
| 366 | Mal's Capital City Rivers |
| 348 | Rivers by number of countries they pass through... |
| 343 | Austrian Rivers on a Map |
| 337 | Biggest Cities in the Mississippi River Basin on a Map |
| 336 | Missouri River States Empty Map Quiz |
| 323 | Countries of Europe by Rivers in 30 Seconds |
| 320 | Largest River by US State Capital City |
| 318 | Biggest Cities On Danube |
| 317 | Longest rivers in Russia |
| 307 | US States Named for Rivers |
| 304 | Major Cities on the Danube on a Map |
| 288 | Longest River By Continent |
| 285 | Biggest Cities On Rhine |
| 283 | Longest Rivers in Ireland |
| 278 | Click the Country - River |
| 264 | Rivers of the UK - sudden death |
| 244 | River to Country - Tile Select |
| 243 | Most Populous River Deltas |
| 239 | seven rivers of india |
| 231 | rivers in belgium |
| 223 | Longest Rivers in a Single Country |
| 230 | Every U.S. State Border River |
| 210 | Countries With Colour Rivers |
| 209 | Name the City on the River (Great Britain & Ireland) |
| 208 | Capitals Located on the Same River |
| 203 | Biggest Cities on the Mississippi River on a Map |
| 189 | Columbia River Basin on a Map |
| 185 | Longest Rivers In All Countries |
| 184 | 25 longest rivers in Europe |
| 183 | Countries of Asia by Rivers in 30 Seconds |
| 177 | 20 longest rivers in Poland |
| 168 | 10 Longest rivers in Canada |
| 166 | River Delta by Country #2 |
| 163 | Bay, Desert, Lake, Mountain, River or Swamp - US Geography Click Quiz |
| 158 | Biggest Cities on the Hudson River on a Map |
| 158 | Major Rivers Sourced on the Tibetan Plateau |
| 157 | Most Populous Country by River |
| 149 | Biggest Cities on the Ohio River on a Map |
| 148 | Ohio River States Empty Map Quiz |
| 147 | Biggest Cities on the Missouri River on a Map |
| 145 | US States Named After Rivers |
| 145 | Brazilian Rivers |
| 144 | Largest City on Each River |
| 136 | Rivers of North America: Sudden Death |
| 131 | Guess the Mystery River |
| 126 | Biggest Cities on the Arkansas River on a Map |
| 125 | French departments by rivers that flow through them |
| 124 | Ohio River States |
| 124 | Biggest Cities on the Rio Grande River on a Map |
| 124 | U.S. Presidents From West of the Mississippi River |
| 121 | Mountain, River, or Island? |
| 113 | Biggest Cities on the Delaware River on a Map |
| 112 | 7 Longest Rivers in Southern Africa |
| 112 | Five Biggest Cities by River |
| 111 | Random River by City |
| 110 | Flags of the Danube River Countries |
| 108 | Longest River by Letter |
| 107 | Biggest Cities on the Tennessee River on a Map |
| 103 | Biggest Cities on the Columbia River on a Map |
| 102 | Random River to Country |
| 102 | Longest European Rivers With a National Capital on Their Shore |
| 101 | Name a Valid U.S. State - Rivers and Basins |
| 100 | Longest Rivers Entirely in the United States |
| 99 | Biggest Cities on the Colorado River on a Map |
| 98 | Longest Rivers in the EU |
| 94 | Congo River Basin Countries |
| 90 | Rivers that flow through four or more countries |
| 90 | Longest World Rivers With a National Capital On Their Shore |
| 90 | Niger River Countries |
| 90 | Largest cities of the Rhine river basin on a map |
| 90 | Biggest Cities on the Snake River on a Map |
| 88 | Biggest Cities on the Red River on a Map |
