Without the 'a' before church it should also be correct. Going to church means a service. Going to a church is more like visiting a church. Both are correct.
Quo vadis, Domine ?
There is no letter a before church
Probably to smoke and share a drink with the bad priest.
"Mrton Polgr" told me under an other discussion: "no article is only an option for uncountable nouns." Here we are: "church" does not need an article. "Templom" is the building in Hungarian, so it sould be 'to the church'
Duo is super confusing.