Guto ab Owain, y pensaer yn Singapore, sy'n trafod pyllau nofio ar ben adeiladau uchel. Architect Guto ab Owain talks about swimming pools at the top of high-rise towers. Show more
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Guto ab Owain, y pensaer yn Singapore, sy'n trafod pyllau nofio ar ben adeiladau uchel. Architect Guto ab Owain talks about swimming pools at the top of high-rise towers. Show more
Mae Radio Cymru wedi bod yn darlledu rhaglenni ers 1977. Radio Cymru has been broadcasting to the nation since 1977.
