Lemurian Sunwheels

Lemurian Sunwheels are carved wheels on N.Sanity Island, typically carved of limestone, that roll indefinitely on arches and date as thousands of years old. These wheels are found in two major regions on N.Sanity Island, and are divided by the two major western and eastern zones. The western zone is smaller, uninhabited, and abandoned, while the eastern zone contrasts this on all fronts. The paths are located on commoner, as well as militant routes.

The construction of these technological marvels would have required a great understanding of mathematics and physics, and though they have been maintained and replaced by the natives over the years, they remain for the most part intact and unchanged for thousands of years.

It is unknown how these wheels were able to withstand erosion and environmental disturbances such as earthquakes. Each arch has a deepening ridge which allows for a degree of stability in the wheel's motion, though theoretically they would be unable to survive geological tremors.

The purpose of these wheels is unknown, but most explorers subscribe to one of two major theories. The first is the theory of invader deterrence, and that these wheels would be "activated" under threat of invasion, in order to slow the advancement of moving troops. The second theory is much more passive, and views the wheels as a more so decorative or cultural addition.

Design
The wheels are almost entirely carved out of aged limestone, and bare each four silver inscriptions of idols on opposite ends of the wheel. This design is widely believed to have represent the sun, which was worshipped by Lemurians and displayed in their artwork and architecture.

Age
Due to their status as a world wonder, the Lemurian Sunwheels have not been able to be closely studied as they are always in motion. Carbon dating attempts on the Wheel 4A, the only known idle wheel, has proven to be ineffective and exact dating on the structures has not been achieved. Leading historians and archaeologists, including Samuel Vortshich, have suggested that the wheels could be upwards of 3500 years old and may have been some of the last structures constructed by the Lemurians before the degeneration of their culture.

Possible sporting use
Archaeological excavations by the British Royal Society in and around the Western Sunwheel Span in 2010 found fragments of running shoes and tablets kept for tallying numbers, possible indicators that the wheels served some kind of sporting purpose in ancient times. A grave site was also found near the wheels in