row+house

A rowhouse is a house that is attached to the other houses around it. Row houses in Pennsylvania started to be built in the early 1800s, mostly out of brick, although some builders used granite, stone, or marble. People who lived in these homes were typically working class families. There are many other style of row houses, including the brownstone, found in New York City.

Source: http://en.wikipedia.org/wiki/File:Lawrenceville.jpg