Types of ancient monuments Megalithic monuments: Large and rough stones that are arranged in place and preserved for several centuries. These ancient monuments are some of the oldest prehistoric monuments found in a range of countries around the world.

In archaeology and heritage management, an old monument is often officially referred to as an "ancient monument" or a "scheduled monument." These terms typically describe man-made structures or archaeological sites that are of significant historical, cultural, or artistic importance. While a "monument" can be any structure built to commemorate a person or event, an ancient monument generally refers to relics from earlier historical periods, such as the Giza Pyramids, Stonehenge, or the ruins of Petra. In some legal jurisdictions, like the UK, "scheduling" a monument provides it with a high level of state protection to ensure its preservation for future generations. These sites are the bedrock of "heritage tourism," serving as physical links to past civilizations and allowing modern society to identify with and study the technological and social advancements of our ancestors.