The church of St Nicholas at Little Langford seems so tucked away. You have to get your Ordnance Survey out. But it's also right next to the Wessex main line railway, which you're reminded of when a little train thunders past now and again. But that can't spoil the peace. When we visited it was gloriously warm, we stood drawing with the sun warming our backs, and it was all extremely pleasant. It had a very welcoming and pleasant atmosphere. You can see the building on the Wiltshire Council website - it's cutely chequered in flint and limestone.
You can read a rather speculative article about the tympanum in the 1909/10 volume of WANHM.
There are some modern photos on Britain Express.