
Around Blackmill, Castell Coety leads the list
None of our places to visit is inside Blackmill’s built-up area; 3 are within 5 km of its edge. They include 2 castles and a heritage railway. Here, one place is kept up by Cadw. A longer outing takes you to Caerphilly Castle, 22 km off.
The first to see around Blackmill
Following Castell Coety are a heritage railway and a castle.
Castle · CadwCastell Coety5 km outside town, to the southHeritage railwayHeritage railwayGarw Valley Railway4.6 km outside town, to the southwestCastleCastleCoity Castle5 km outside town, to the southEach has a page of its own: what it is, who runs it, the weather month by month and what else is near it.
Where they are
On the map, most of the 3 sit to the south.
The dashed line is Blackmill’s built-up area; orange marks its middle (where most people live). Numbers match the list below. © OpenStreetMap contributors · ONS built-up area 2022
What is on offer
Most common are castles or historic places: 2 of 3.
Green: inside Blackmill. Grey: within 5 km of its edge.
1 place is cared for by Cadw (Castell Coety).
The list in full
The list runs to 3 places, all within 5 km of its edge.
Close and well known first. Churches and listed buildings are on the History page, not here.
6 listed buildings are on Blackmill’s History page → · Parks, footpaths and green space in Blackmill →
Beyond Blackmill
Start with Caerphilly Castle, 22 km off, the best known of 12.
MuseumNational Museum Cardiff27 km east · 373K visitors a year
Castle · CadwY Castell Newydd7.5 km southwest
CastleCardiff Castle27 km east
Castle · CadwOgmore Castle11 km southwest
Castle · CadwCastell Coch20 km east
Big drawMuseumSt Fagans Museum Visitor Centre21 km southeast · 610K visitors a year
CathedralLlandaff Cathedral24 km east
CastleCandleston Castle12 km southwest
CastleKenfig Castle14 km west
CathedralCardiff Metropolitan Cathedral27 km east
CastleMargam Castle13 km westPlaces well known beyond Blackmill (Wikipedia articles in several languages, published visitor counts, or a National Trust, English Heritage or Cadw property), close and famous first. Distances are straight lines from the middle of the town.
Seeing Blackmill: your questions
What is there to see near Blackmill?
No attraction is mapped inside Blackmill itself. Within 5 km of it are Castell Coety, Garw Valley Railway and Coity Castle.
Does Blackmill have a museum?
No museum or gallery is mapped in or within 5 km of Blackmill.
Is there a National Trust or English Heritage property near Blackmill?
Yes. In or within 5 km of Blackmill, 1 place is cared for by Cadw (Castell Coety).
What are the best-known days out near Blackmill?
Within 40 km: Caerphilly Castle (22 km), National Museum Cardiff (27 km), Y Castell Newydd (7.5 km), Cardiff Castle (27 km).
Where are Blackmill’s historic buildings listed?
Blackmill has 6 listed buildings. They are on its History page, from Cadw’s list, not repeated here.
How is this list made?
From OpenStreetMap (museums, galleries, zoos, theme parks and attractions, castles, forts and abbeys, and historic houses and gardens that are open to visitors) and Wikidata (what each place is, who runs it, its website and visitor counts). A place counts for Blackmill when it is inside the ONS 2022 built-up area, and as nearby within 5 km of its edge. Opening times and prices are not shown: check the official site.
Places: OpenStreetMap (© OpenStreetMap contributors, Open Database Licence) and Wikidata (CC0), placed in the ONS 2022 built-up area (Open Government Licence v3.0). Visitor counts are the latest Wikidata gives, with their year.
Photos: each place’s Wikidata image, from Wikimedia Commons under the licence below (our copy, resized).
Photo credits (12)
- Castell Coety: kenneth rees, CC BY-SA 2.0, Wikimedia Commons
- National Museum Cardiff: Ham II, CC BY-SA 3.0, Wikimedia Commons
- Y Castell Newydd: Alan Hughes, CC BY-SA 2.0, Wikimedia Commons
- Cardiff Castle: Tevfik Teker, CC BY 3.0, Wikimedia Commons
- Ogmore Castle: Ewan Topping from Amsterdam, Netherlands, CC BY 2.0, Wikimedia Commons
- Castell Coch: Hchc2009, CC BY-SA 4.0, Wikimedia Commons
- St Fagans Museum Visitor Centre: Sionk, CC BY-SA 4.0, Wikimedia Commons
- Llandaff Cathedral: Bill Boaden, CC BY-SA 2.0, Wikimedia Commons
- Candleston Castle: Thruxton, CC BY 3.0, Wikimedia Commons
- Kenfig Castle: Hywel Williams, CC BY-SA 2.0, Wikimedia Commons
- Cardiff Metropolitan Cathedral: Ham II, CC BY-SA 4.0, Wikimedia Commons
- Margam Castle: Robert Davies, CC BY-SA 2.0, Wikimedia Commons
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.