The top five tourist attractions in Wales are buildings linked to our heritage and culture. Tourism brings in over £3bn to the economy and is a key priority for the Welsh Government.
So why are 3,000 heritage buildings on the verge of falling down? Wales this Week investigates the matter in a programme that'll be broadcast on ITV1 Wales tonight.
Architectural historian Mark Baker is calling for local authorities to do more to preserve buildings under their control, blaming a "lack of understanding" on the part of councils to properly maintain important sites.
"They have a fear they'll end up with the bill" he says.
More top news
Well a fabulous day today has ended on a spectacularly soggy note for some! Heavy rain, hail and thunder will work northwards overnight!
The Talyllyn runs from Tywyn, near Aberdovey, for more than seven miles to two villages in the south Gwynedd countryside.
Homes in parts of Tonypandy and Llwynypia are without water this evening due to a burst water main at Cilfynydd.