Yes, Virginia, the earth is flat

Do they really think the earth is flat? Yes, they do:

Mr. McIntyre estimates "there are thousands" [of people who believe the earth is actually flat], but "without a platform for communication, a head-count is almost impossible", he says. Mr Davis says he is currently creating an "online information repository" to help to bring together local Flat Earth communities into a "global community".

"If you will forgive my use of the term 'global'", he says. (BBC)