High Quality Content by WIKIPEDIA articles! This article attempts to list the oldest extant freestanding buildings constructed in the United States of America by Europeans (English, Spanish, Dutch, French, Swedish, Germans), Africans, Native Americans and other immigrants and native born people. The list also includes sites in current states and territories that were not part of the original Thirteen Colonies when the United States of America was founded in 1776. Sites on the list are generally from the First Period of American architecture or earlier.