The Tees Transporter Bridge has been the area's landmark since opening in 1911. It is the longest working transporter bridge in the world and an iconic symbol of Teesside's engineering and industrial heritage. The Tees Transporter Bridge has played an important role in the area's history for over a century and continues to provide an important and unique crossing over the River Tees. In recent years the Transporter has emerged as a leading historic visitor attraction and is one of the UK's major sites for extreme sports including abseils, bungee jumps and zip-slides. In 2011, to mark the Bridge's centenary, the Heritage Lottery Fund (HLF) confirmed a £2.6m award for refurbishment and upgrade work to the Bridge. The HLF-supported Tees Transporter Bridge Visitor Experience Project included the installation of a glass viewing lift to provide improved access to the upper walkway, renovation of the gondola and the development of state-of-the-art visitor resources.