Historic roads and trails
Historic roads are paths or routes that have historical importance due to their use over a period of time. Examples exist from prehistoric times until the early 20th century. They include ancient trackways, long-lasting roads, important trade routes, and migration trails. Many historic routes, such as the Silk Road, the Amber Road, and the Royal Road of the Persian Empire, covered great distances and their impact on human settlements remain today.
Wittmoor Bog Trackway, Germany. (The trackways date to the 4th and 7th century AD). Photo taken during an excavation.
The Roman Appian Way, near Casal Rotondo, to the southeast of Rome, Italy.
Silk Road. Both the land and sea routes
Reconstructed ancient cliff path of Mingyue Gorge, northern Sichuan, China, part of the Shudao road system
A causeway is a track, road or railway on the upper point of an embankment across "a low, or wet place, or piece of water". It can be constructed of earth, masonry, wood, or concrete. One of the earliest known wooden causeways is the Sweet Track in the Somerset Levels, England, which dates from the Neolithic age. Timber causeways may also be described as both boardwalks and bridges.
The Hindenburgdamm Rail Causeway across the Wadden Sea to the island of Sylt in Schleswig-Holstein, Germany
Kaichu Doro in Uruma, Okinawa-Honto, the main island of the Ryukyu Islands in Japan.
Satellite photo of the Great Salt Lake from August 2018 showing a major color difference between the northern and southern portions of the lake as a result of a mineral imbalance caused by a railroad causeway.
The Julia Tuttle Causeway, one of the major arteries connecting Miami and Miami Beach in Florida