Orfordness Lighthouse in Suffolk dates back to 1792 and is one of those which could be switched off by owners Trinity House.
Les Hanois lighthouse, owned by Trinity House, is situated on a reef on the west side of Guernsey. Photograph taken by Tim Harvey.
Hartland Point lighthouse in north Devon was built by Trinity House in 1874 under the direction of Sir James Douglass. Its future as a navigation aid is being reviewed.
Start Point Lighthouse near Dartmouth in Devon was designed in 1836. Photograph taken by Nick Shepherd.
Skokholm island lighthouse, off the south-west coast of Pembrokeshire in Wales, is also being reviewed by Trinity House. Photograph taken by Andy Myatt.
Nash Point Lighthouse in Vale of Glamorgan, Wales, was built in 1832.
The current Beachy Head Lighthouse in Sussex dates back to 1902. Its future is also being reviewed.
What are these?