Archaeologists use many ways to look for lost cities or unknown places. Their goal while searching is to find clues. Some examples are bricks, stones, or pieces of broken items.
They also do a photographs study, which can sometimes lead them to what's on or under the surface.
Before excavating a site or marking a place for digging, archaeologists use a grid system to make a plan. The grid system is used to map out where to start a dig.
They work in their squares, cleaning away the vegetation using steady and cautious movements. They always keep track of each finding. Documentation plays a significant role for them.