I visited Rome last year. There was a lot of talk about how long it was taking to build a new subway line, because they kept running into ancient artifacts. It was also commonly said that the city was like a lasagna, with layers upon layers of history under everything. Building that were originally built elevated are now at street level.

It almost seems hard not to find ancient ruins. It then becomes a question of priorities and resource allocation.

There was graffiti as well so others had already found it