Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Rank the following cities based on the number of historical landmarks they have.

### Input:
New York, Los Angeles, Boston

### Response:
New York, Boston, Los Angeles. New York has the most number of historical landmarks. Los Angeles has the least number of historical landmarks. Boston is in the middle.