This 1890s Scottish viaduct was the first concrete railway bridge and the longest in the country. West Highland Line travelers enjoy Highland vistas from the 21-arch viaduct.
The lonely lighthouse has marked Anglesey's Holy Island's far northern coast since 1809. Today, the lighthouse is only accessible by 400 steps and a suspension bridge.
The Mull of Galloway, Scotland's southernmost point, is topped by a late 1820s Robert Stevenson lighthouse.
St Davids Cathedral in Pembrokeshire is one of Wales' most beautiful churches. The purple-stoned cathedral was built in the 12th century on the location where St. David founded a monastery approximately AD 600.
Kent's shockingly white chalk cliffs are one of Britain's most recognizable natural characteristics. As the gateway to Britain, they were the first sight of home for World War II veterans returning across the English Channel
This fortification, perched on Castle Rock above Edinburgh, is one of Scotland's most popular attractions.
Overlooking Lancashire's beachfront since 1894, this 518-foot (158m) building is a beloved symbol of a bygone era. Inspired by the Eiffel Tower, Victorian architect Frank Matcham created it.