DIY Dig Site
Step 1
Pick a location. (And secure permissions for building on it!)
Step 2
Gather materials. Find representatives for artifacts and architectural, faunal, and floral remains.
Step 3
Set the foundations of an ancient city from time period of your choosing. (See the BAS Library for possible site plans.)
Step 4
Plant fake artifacts and the floral and faunal remains among the architecture.