Hillhouse Avenue is a street in New Haven, Connecticut, famous for its many nineteenth century mansions, including the president's house at Yale University. Both Charles Dickens and Mark Twain have described it as "the most beautiful street in America." Much of the avenue is included in the Hillhouse Avenue Historic District, which extends to include houses on adjacent streets.

Ithiel Town was an American architect and civil engineer. One of the first generation of professional architects in the United States, Town made significant contributions to American architecture in the first half of the 19th century. His work, in the Federal and revivalist Greek and Gothic revival architectural styles, was influential and widely copied.