Glass doors open up St John's church in Cardiff
24 June 2014 Last updated at 08:49 BST
Cardiff's oldest church is being visited by the Archbishop of Wales and the city's Lord Mayor, all because it's undergone something of a makeover.
The traditional wooden doors at St John the Baptist Church have been replaced with glass ones and the archbishop is to bless them at a ceremony later.
The city centre church, next to the indoor market, is the oldest remaining medieval building in the city, after the Castle, dating from the 12th Century.
For the first time, people can see straight through into the church while the congregation can look out to the streets and benefit from extra light.
There are three sets of doors - one at the external entrance and two at the porch - and they all have a simple design of one long, symmetrical cross. They were designed by local architect Martin Killick.
Canon Sarah Rowland Jones from St John the Baptist Church in Cardiff city centre told BBC Radio Wales' Felicity Evans about its evolving history.