A raft of new listed buildings has been announced, ranging from a Protestant church to a heavily-trafficked road bridge.
The list of 10 properties was announced by the Department of the Environment, and covers both the city and county of Londonderry.
Perhaps the highest-profile landmark on the list is Craigavon Bridge, which spans the River Foyle.
It was given special protection because it is an important early 20th century road bridge with art deco details, Environment Minister Mark H Durkan said.
It is the only two-tiered bridge in Northern Ireland.
Announcing the move, Mr Durkan said: “These listings in the Derry area are a tangible boost for the city and the wider area.
“The iconic Craigavon Bridge for example, is a reminder of our industrial heritage and a symbol of both Derry’s past and future growth.”
Faughanvale Presbyterian Church in the village of Eglinton to the west of Londonderry city was also listed.
The building was constructed in 1894, although the congregation itself dates back to 1730.
Also confirmed as new listings are a Cross of Sacrifice located at the City Cemetery, a vernacular dwelling at Cumber Road outside Claudy, a former corn mill outside Eglinton and a farmhouse at Ballougry which has value when grouped with the adjacent listed windmill.
Mr Durkan added: “The new listings reflect Derry’s varied and diverse history and will ensure these important cultural assets are preserved and protected as part of the area’s rich and historic fabric.
“My department and I continue to be committed to ensuring that our historic environment is recognised and utilised to its full potential to deliver a better economy and quality of life for all.
“The new listings will further enhance the marketing of the city as a great place to work, visit and invest.”