A section of the trackway has been reconstructed. Built somewhat later, the Wittmoor Bog Trackways are two historic trackways discovered in Wittmoor in northern Hamburg. The trackways date to the 4th and 7th century AD, both linked the eastern and western shores of the formerly inaccessible, swampy bog. A part of the older trackway No. II dating to the period of the Roman Empire is on display at the permanent exhibition of the Archaeological Museum Hamburg in Harburg, Hamburg. Hellweg was the official and common name given to main travelling routes medieval trade route through Germany. Their breadth was decreed as an unimpeded passageway a lance's width, about three metres, which the landholders through which the Hellweg passed were required to maintain. The Kulmer Steig is a byword for transport links from the Elbe valley over the eastern part of the Eastern Ore Mountains to Bohemian (). Archaeological finds suggest that this route existed in the Bronze () and the Iron Age (750 BC – early AD) and even in the Neolithic (Stone Age ) Great Britain England The Post Track and Sweet Track, causeways or timber trackways, in the Somerset levels, near Glastonbury, are believed to be the oldest known purpose built roads in the world and have been dated to the 3800s BC. The tracks were walkways consisting mainly of planks of oak laid end-to-end, supported by crossed pegs of ash, oak, and lime, driven into the underlying peat. and were used to link the fen islands across the marshes. The Lindholme Trackway is later and dates to around 2900–2500 BC. It fits within a trend of narrowing width and increased sophistication during the third millennium BC. Some argue that this shift could relate to the growing complexity of wheeled transport at the time. Tracks provided links between farmsteads and fields, other farmsteads, and neighbouring long barrow tombs. They also joined the separate localities to the camp meeting places and cross-country flint roads. Others were more likely to have been processional ways, such as the one leading to the gigantic temple at Avebury in Wiltshire. On British hills, the line of tracks often run a little below the actual crest of a ridge, possibly to afford some shelter from the wind or to avoid travellers presenting themselves to marauders as a target on the skyline. Examples include the Harrow Way and the Pilgrims' Way, running along the North