Traditional colleges offer majors such as history or preservation, and while those programs can educate you about these topics, they do not prepare you for an active career working hands-on to preserve, restore, rehabilitate or build architecturally significant structures. ACBA students can earn a four-year Bachelor of Applied Science degree from among the six specializations outlined below. Two-year Associate of Applied Science degrees are offered in Architectural Stone, Blacksmithing, the Fundamentals of Architectural Carpentry & Timber Framing and Plaster.