The Spanish people built the Mexico city as their capital city of New Spain.
Step-by-step explanation:
Mexico city is the capital of Mexico. It is a highly and a densely populated city. Mexico city is the largest city of Mexico which is located in the western hemisphere and is a metro politician city.
At present, this city is the economic and the cultural hub of the country. But it was originally built by the Spanish people as their capital when Tenochtitlan was ruined.