Kilometer Zero marker

Highways in Australia are usually built and maintained by the states and territories. In the state of New South Wales, highway distances (mileages) were traditionally measured from a sandstone obelisk in Macquarie Place in Sydney

An obelisk from 1818 and designed by the New South Wales Government Architect, Francis Greenway, is located in the park and records the distance to various locations in New South Wales along the earliest roads developed in the colony.