This representative iconic thumbnail image starts the conversation to follow and kicks off the "Truther Top 20s" (TT20) project which bridges platforms and is co-hosted on InfoGalactic : https://infogalactic.com/info/Truther_Top_20s .

From a September 2015 ''Voices From Russia'' blog post ( https://02varvara.wordpress.com/tag/september-11-attacks/ ) found with a DuckDuckGo image search, understood as a thumbnail this bold iconic image clearly represents and even states the topic title, making it perfect to start this post.

Note: I did not read that blog post and can't speak to it's good, bad, or other qualities.

Almost 2 years ago exactly I wrote this article on Steemit: https://steemit.com/september2001/@jasoncarswell/never-forget-sept-2001-six-events-reclaimthenarrative-fightelitesnoteachother

It's not exactly a Top 20 list but it is a pretty good reference place start from and it pretty much covers my views which have been further developed and refined since then.