Hello guys. When I was doing some reviews of one of the longest animes in history(Bleach,Detective Conan,One Piece) is though that maybe I should search more and try to find which animes are the longest. So here we go,this is a list of top 10 longest anime,but considering the number of the episode and the standard type of today animes(because there are many that are in the same section,but much shorter and in different style).
So first here we have,the 3 longest anime in history. The things is that these are one of the first animated series that came from Japan,and that the series still continue to come out.o_O Yeah you guessed,there are really many episodes there. These are:
1.Sazae-san (6367+)
2.Doraemon(it is not a Digimon xD)(2189+)
3.Nintama Rantaro (1483+)

As you can see,the numbers of these episodes go by four digits.o_O But the length of these animes is quite short. So by taking the approximate time of an anime(around 25 minutes including opening,ending and preview) here are the top 10 anime,that you probably seen or heard many of them. The episodes that have "+" by them means that the anime is still in the production.

1.Case Closed/Detective Conan (593+)
2.One Piece (473+)
3.Kochira Katsushika-ku Kameari Kōen-mae Hashutsujo(lol I had to copy and paste this anime,because of the length of the name xD) (367)
4.Kiteretsu Daihyakka (331)
5.Bleach (296+)
6.Dragon Ball Z (291)
7.Pokemon (276)
8.Dr. Slump Arale-chan (243)
9.Yu-Gi-Oh! Duel Monsters (224)
10.Naruto (220)

So these are that I found,the longest animes by now. If you know any other one that I didn't wrote,please tell me.
And thank you all for reading!^^