Castle Street Row - Credit: Wikimedia Commons
Castle Street Row is a historic rowhouse block at 4–18 Castle Street in Worcester, Massachusetts. Built by Worcester industrialist and developer Eli Thayer, the row of eight units is the largest collection of rowhouse units remaining in the city from a somewhat larger number built around that time. The three-story brick buildings are Second Empire in style, with mansard roofs. Although they were designed as single-family homes, most of them had been subdivided by the late 1880s. Read more on Wikipedia
Source: en.wikipedia.org