The entire statement makes me think that. There is no atheist church because there is no atheist religion. Perhaps there's a meeting place for them but it's not a church as a church is a place of worship. Also atheists do spend a lot of time thinking about the possibility of God. Most people like yourself believe that atheists make the statement "there is no God". It's 100% false. The majority of atheists are agnostic atheists who make the statement "at this moment in time, it is impossible to know if there is a God or not, but if evidence shows the existence of God then there is one". They spend a great deal of time going through the hundreds of thousands of religions out there seeing if any of them show any evidence and a great deal of time with philosophical theories.
The fact of the matter is we have always questioned the meaning of life since we developed intelligence. We will continue to question the meaning of life for the rest of our existence. It's part of being self aware. There are those that will settle on the religion they grew up with to give them all the answers and there are those who will continue to question. And there are those like the guy who put up the billboard (a very small minority) that want to push their beliefs onto other people and be a complete douchebag. Same type of person that would probably be knocking on your door at 6am on a sunday if he was a Jehovah's Witness. Same type of person that would be a suicide bomber if he was a radical Muslim. Same type of person that would be blowing up abortion clinics if he was a Christian. The religion (or lack thereof) does not define the person, the actions do.
But keep on putting atheists into this imaginary box you've created for them. They're evil soulless people with no morals who want to convert all your children to the devil's ways.
It was a meeting place for atheists with stained glass windows and who had a sign about meeting on Sunday mornings, it was ironic and my comment shouldn't be taken too seriously.
I actually have two boxes for atheists. Box one is for those that are good folk who don't believe in any god, but have a good moral compass and treat others respectfully. These are the ones I like. Then the other box of people who feel it is their duty to remove all religion from sight, stamp out every source of any thought of religion and ridicule those that don't believe what they believe.
If you want to get butt hurt about it, that’s fine. I get butt hurt too sometimes.