This little video came up in my YouTube recommended today and I thought it may be of interest to some here.
I'd never heard of it before, but it's a short about Friends of the City Churches. They're a group of volunteers who look after the churches of The City of London. They're on hand to open up the churches, as not all of them open every day. They'll answer questions for visitors and welcome folks in.
They've got a great website which I'll link to below with a calendar to help you find a church to visit. Well worth a look.