It would be easier to discuss how they differ. Similarities include access to museums and art history. If you are in Madrid, for example, the quality of night life may be similar to NYC but if you are in a more rural city, it could be extremely different.
There are no major cities in New York City. New York City IS a city; it doesn't contain any cities.
New York City! New York City!
Barcelona is a major city. It is the second largest city in Spain.
What is the distance from New York City to Barcelona Spain
Three major cities in New York State are: New York City, Syracuse, and Buffalo.
Madrid, Barcelona, and Valencia are the three major cities in Spain
New York City IS a city. It does not contain any cities.
Barcelona is a city in the country Spain
The plural form of the word city is cities.
Spain is a nation. It contains cities, not the other way around.
The two major cities in New york are New York City because it is the largest city in new york and the main city also Albany is another major city and it is the major city because in is also the main city in New york like New york city.
New York City, Mexico City, Ho Chi Minh City, Panama City and Guatemala City are World cities that have city in their names.