 The youngest of the three buildings is Newbridge memorial hall |
Voters find out later which of three Welsh buildings has been chosen to go forward to the final of BBC Two's Restoration programme. Newbridge Institute, Llanfyllin Union workhouse and Cardigan Castle have all opened over the weekend to show off their potential to visitors.
Winners from seven regions and one runner-up with the next best result will compete for �2.5m.
The lottery funding will pay for restoration work to the building.
In all, 21 buildings across the UK have been chosen for the series, which is presented again by Griff Rhys Jones.
On Saturday, the Grade 2-listed Llanfyllin Union workhouse in Powys, which dates from 1838, gave guided tours to visitors.
Norman
Cardigan Castle in the centre of Cardigan has been open on both Saturday and Sunday.
There has been a building on the site since at least Norman times.
Both sites need an estimated �3.5m to be restored.
Meanwhile Newbridge Institute and Memorial Hall in south Wales has been giving tours of its old cinema and stalls, and had performances by choirs and brass bands throughout the building on Sunday.
The newest of the three, it needs about �2.49m.
Voting for the three properties has now closed and the results will be announced at 2100 BST on the Restoration programme on BBC Two.