The St Fagans National History museum has been awarded an £11.5 million grant to help redevelop the site. It's the largest amount of funding the heritage lottery fund has ever awarded in Wales.
The money will be used to develop new galleries and activities.
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England enjoyed a winning send-off to their Australia tour as they recovered from early problems leaving Wales floundering.
Veteran singer Sir Tom, 75, is gearing up for his first concerts since wife Linda died after a "fierce" battle with cancer in April.
It will be a dry and fine day across the country with plenty of warm sunshine and light winds.