A puzzle for scientists was found in Shelbyville, Illinois, USA. The town was founded in 1827, which is very recent by historical standards.
How the city ended up 4-5 meters in the ground is a mystery. The city was built not long ago, the seas and oceans are far away, typhoons do not reach the center of the country either.
The excavated structure itself - the arched openings, columns and red bricks - is also impressive. In most of the excavated cities, surprisingly, the buildings are built as if from a template.
Forbidden History
