What Christian Churches? They exist only underground!
However, I went to Mass everyday on the ARAMCO camp. The priests and ministers (only one minister for all Protestant denominations) were called "special teachers." So, I discovered that I didn't need a building to "be with God" and a priest by any other name was still celebrating Mass.
I had never gone to Mass every day, just Sundays, but I started to OVER THERE, and, on returning, still do.
ODD TO SAY, but I did discover daily Mass in the Kingdom of Saudi Arabia.
Does God work in mysterious ways, or what?
There’s a Christian church in Dubai. One in Sharjah, too. UEA was pretty reasonable, at least for me. You wouldn’t want to be a woman and get raped there, though. They’d throw you in prison for adultery.