Radio Cardiff

The Cardiff Built-up Area or Cardiff Urban Area is the name given to the urban area around Cardiff. The vast bulk of the population and area are contributed by Cardiff, which had a population of 335,145 at the 2011 census. The rest was made up by the towns of Penarth and Dinas Powys, connected to the south-west of the city along Cardiff Bay; as well as the South Wales Valleys towns of Caerphilly and Pontypridd. The total official population of this urban area was given to be 447,487 in 2011. This was an increase of almost 37% on the 2001 population of 327,706. This was mainly due to Caerphilly and Pontypridd becoming part of the built-up area. The population of the Cardiff unitary authority (not co-terminous with the built-up area or the wider urban area) in 2001 was 305,353. Cardiff Council estimated the population of the unitary authority at 317,500 in 2006; as of the 2011 census it was 346,090.

Cardiff Central railway station (Welsh: Caerdydd Canolog) is a major station on the South Wales Main Line, located in the capital of Wales, Cardiff. It is one of the city's two urban rail network hubs, along with Cardiff Queen Street. Opened in 1850 as Cardiff station, it was renamed Cardiff General in 1924, and then Cardiff Central in 1973. The station is located at Central Square, in Cardiff city centre. The Grade II listed building is managed by Transport for Wales Rail, and is both the largest and busiest station in Wales.Cardiff Central is one of twenty railway stations in the city and one of two in the city centre, serving as a hub for the Valleys & Cardiff Local Routes. It is an interchange for services between South Wales, West Wales and North Wales, as well as other major British cities. Transport for Wales Rail operates services to most destinations in Wales and to Manchester; while CrossCountry operates trains to Gloucester, Birmingham and Nottingham. Great Western Railway runs all London Paddington intercity services via Bristol and to Swansea, as well as some regional services to Bath, Taunton and Portsmouth via Southampton Central.

Callaghan Square is a large public plaza in Cardiff, Wales, previously known as Bute Square. It was developed as part of a Private Finance Initiative (PFI) scheme to link central Cardiff with Cardiff Bay.

Loudoun Square is a residential square in Cardiff, Wales, described as "the heart of the old Tiger Bay". The square is the location of two of Cardiff's few residential tower blocks, as well as shops, a pub, church, health centre and community centre.

A statue of the Second Marquess of Bute stands in Callaghan Square, Cardiff, Wales in recognition of John Crichton-Stuart (1793 – 1848) who developed Cardiff Docks. The statue was originally unveiled in 1853. It was designed by J. Evan Thomas. The statue became Grade II listed in 1975.

Central Square (Welsh: Sgwâr Canolog) is a large public space in Cardiff, Wales, adjacent to Cardiff Central railway station and included Cardiff Central bus station between 1954 and 2015. It was redeveloped and extended in the late 2010s and early 2020s.

Curran Steels was a manufacturing company in Cardiff, Wales, founded as the Edward Curran Engineering Co and known locally as Curran's. The factory was located on the east bank of the River Taff, near to Cardiff Docks. It was served by the Riverside branch railway.

Rail transport in Cardiff has developed to provide connections to many other major cities in the United Kingdom, and to provide an urban rail network for the city and its commuter towns in southeast Wales. Today, there are three train operating companies in Cardiff: Great Western Railway, CrossCountry and Transport for Wales.

Cardiff Central bus station was the main bus transport interchange in the Cardiff city centre until it closed on 1 August 2015. With 34 stands, it was the largest bus station in Wales. It was located adjacent to Cardiff Central railway station forming a major interchange. Construction of a new bus and transport interchange on the site of the former NCP multi-storey car park in Wood Street, adjacent to the old bus station, is underway with an expected date of completion in Spring 2023.The station used to handle the vast majority of bus and coach services that run in and through the city. Notable exceptions were Megabus services (which called at Kingsway and Cardiff University), Stagecoach South Wales route 122 (which called at Greyfriars Road) and EST route 89 (which used Customhouse Street).

BBC Cymru Wales New Broadcasting House (Welsh: Tŷ Darlledu Newydd BBC Cymru Wales), previously known as BBC Wales Headquarters building, is the headquarters of BBC Cymru Wales in Central Square, Cardiff. It operates many of its broadcasting services (radio and TV) from there using IP-based studios. It also serves as a base for S4C.The £120 million building replaced the BBC Cymru Wales Broadcasting House in Llandaff, when 1,000 production and support staff began moving into the new facility in October 2019. The building is officially located at 3 Central Square, but has also been referred to as BBC New Broadcasting House.

The River Taff (Welsh: Afon Taf) is a river in Wales. It rises as two rivers in the Brecon Beacons; the Taf Fechan (little Taff) and the Taf Fawr (great Taff) before becoming one just north of Merthyr Tydfil. Its confluence with the River Severn estuary is in Cardiff. The river supports several species of migratory fish, including salmon, sewin (sea trout), and eel.

Custom House Street Tower (also known as Customhouse Street Tower) is a proposed 42-storey skyscraper in Cardiff, Wales. The building was originally due to open in 2018, however, as of 2020 work has yet to begin. The 433 ft (132 m) mixed-use development building will accommodate approximately 450 students and also retail units on the ground floor. When completed it is envisaged that the tower will become the tallest building in Wales. The tower is enclosed by Custom House Street to the north, Bute Street to the east, the South Wales Main Line to the south and Hope Street to the west.