In 1996, the cathedral was added to the UNESCO World Heritage List of culturally important sites. In 2004 it was placed on the "World Heritage in Danger" list, as the only Western site in danger, due to plans to construct a high-rise building nearby, which would have visually impacted the site. The cathedral was removed from the List of In Danger Sites in 2006, following the authorities' decision to limit the heights of buildings constructed near and around the cathedral.
As a World Heritage Site, and with its convenient position on tourist routes, Cologne Cathedral is a major tourist attraction, the visitors including many who travel there as a Christian pilgrimage.