For those of you who enjoy a good bridge, here is one of the finest – the Menai Suspension Bridge, which links the island of Anglesey to the mainland of Wales.
It was designed by Thomas Telford and completed in 1826.
Before the bridge all movements from the island were by ferry. But links had to be improved from Dublin, via Holyhead, to London.
The design of the bridge had to allow for Royal Navy sailing ships 100 feet (30m) tall to pass under the deck at high tide.
I took these photos during a visit to Anglesey in September 2013.