You can, but it’s painful. Amsterdam has just completed a new subway line that crosses under the entire city. It took about 15 years of construction (after 15 y

You can, but it’s painful. Amsterdam has just completed a new subway line that crosses under the entire city. It took about 15 years of construction (after 15 years of political discussion and planning), cost about 3,1 billion Euro and damaged some historical buildings because Amsterdam is essentially built on a swamp (no humans were harmed though). Still, this is a city that’s many years older than even the oldest city in the US. It can be done.