Editing Waterfall (section)

== List ==
{{Main|List of waterfalls|List of waterfalls by flow rate|List of waterfalls by type}}
[[image:Shaki_Waterfall2.jpg|thumb|260px|[[Shaki Waterfall]] in [[Armenia]]]]
There are thousands of waterfalls in the world, though no exact number has been calculated. The World Waterfall Database lists 7,827 as of 2013, but this is likely incomplete; as noted by Hudson, over 90% of their listings are in North America. Many guidebooks to local waterfalls have been published.{{Sfn|Hudson|2013b|p=372}} There is also no agreement how to measure the height of a waterfall,{{Sfn|Goudie|2020|p=61}} or even what constitutes one.{{Sfn|Hudson|2013b|p=372}} [[Angel Falls]] in [[Venezuela]] is the [[List of waterfalls by height|tallest waterfall in the world]], the [[Khone Phapheng Falls]] in [[Laos]] are the widest,<ref name=":3" /> and the [[Inga Falls]] on the [[Congo River]] are the biggest [[List of waterfalls by flow rate|by flow rate]],<ref>{{Cite book|last=|url=https://books.google.com/books?id=fI4eBwAAQBAJ&dq=%22Inga+Falls%22+%22flow+rate%22&pg=PA59|title=Atlas A-Z: 6th edition: A Pocket Guide to the World Today|date=2015-04-07|publisher=Penguin|isbn=978-1-4654-4252-9|page=59|language=en}}</ref> while the [[Dry Falls]] in [[Washington (state)|Washington]] are the largest confirmed waterfalls ever.<ref>{{Cite web|last=Frank|first=Zack|title=The largest waterfall that ever existed|url=https://www.bbc.com/travel/article/20170601-the-largest-waterfall-that-ever-existed|url-status=live|access-date=2021-08-27|website=BBC|language=en|archive-date=27 August 2021|archive-url=https://web.archive.org/web/20210827130012/https://www.bbc.com/travel/article/20170601-the-largest-waterfall-that-ever-existed}}</ref> The highest known subterranean waterfall is in [[Vrtoglavica Cave]] in [[Slovenia]].<ref>{{cite web|last1=Pavils|first1=Gatis|title=Vrtiglavica Cave and Waterfall|url=http://www.wondermondo.com/Countries/E/Slovenia/SlovenianLittoral/Vrtiglavica.htm|access-date=4 April 2017|website=Wondermondo|date=7 March 2013|archive-date=18 March 2017|archive-url=https://web.archive.org/web/20170318210349/http://www.wondermondo.com/Countries/E/Slovenia/SlovenianLittoral/Vrtiglavica.htm|url-status=live}}</ref> The [[Denmark Strait cataract]] is an [[undersea overflow]] which could be considered a "waterfall" under a very broad usage of that term; if so included, it is the largest known waterfall.<ref name=":5" />

[[Artificial waterfall]]s are [[water feature]]s or [[fountain]]s that imitate a natural waterfall.<ref name="AndersonTabb">Susan C. Anderson (Editor), Bruce Tabb (Editor), ''Water, Leisure and Culture: European Historical Perspectives'', Berg Publishers, 2002, {{ISBN|1-85973-540-1}}, page 122</ref> The [[Cascata delle Marmore]] is the tallest artificially built waterfall at {{Convert|541|ft}}.<ref>{{Cite book|last=Hudson|first=Brian J.|url=https://books.google.com/books?id=FKtkU4E-mWYC&q=Cascata+delle+Marmore+tallest+man+made+waterfall|title=Waterfall: Nature and Culture|date=2013-02-15|publisher=Reaktion Books|isbn=978-1-86189-956-9|page=222|language=en}}</ref>