Pontcysyllte Aqueduct
In 1999, the aqueduct and its surrounding lands were submitted to the "tentative list" of properties being considered for UNESCO World Heritage Site status.  The aqueduct was suggested as a contender in 2005, its 200th anniversary year. It was finally announced in 2006 that a larger proposal, which covers a section of the canal from the aqueduct to Horseshoe Falls would be the United Kingdom's 2008 nomination.