Prince Charles has unveiled a plaque at the restored and renamed Redhouse Town Hall in Merthyr Tydfil.
He told onlookers he is "very impressed" with the building.
More top news
Showers this evening with heavier and more persistent rain arriving overnight. A wet start tomorrow but improving during the afternoon.
A mother from Neath has told how her teenage son collapsed and was left unconscious for five hours after taking a so-called legal high.
Two brothers from Cardiff are campaigning for their cousin's murder to be re-investigated, 76 years after she died.