National Historic Register properties in Blair county/parish, Pennsylvania

• Allegheny Furnace (Altoona)
• Altoona Armory (Altoona)
• Baker Mansion (Altoona)
• Broad Avenue Historic District (Altoona)
• Central Trust Company Buildings (Altoona)
• Downtown Altoona Historic District (Altoona)
• Downtown Altoona Historic District (Boundary Increase) (Altoona)
• Dudley, Charles B., House (Altoona)
• Horseshoe Curve (Altoona)
• Keith, D.S., Junior High School (Altoona)
• Knickerbocker Historic District (Altoona)
• Leap-the-Dips (Altoona)
• Llyswen Historic District (Altoona)
• Mishler Theatre (Altoona)
• Noble, J. L. School (Altoona)
• Penn Alto Hotel (Altoona)
• Isett, Jacob, House and Store (Arch Spring)
• Fort Roberdeau (Culp)
• St. John's Evangelical Lutheran Church (Culp)
• Blair County Courthouse (Hollidaysburg)
• Chimney Rocks (Hollidaysburg)
• Highland Hall (Hollidaysburg)
• Hollidaysburg Historic District (Hollidaysburg)
• Allegheny Portage Railroad National Historic Site (Johnstown)
• Etna Furnace (Boundary Decrease) (Mt. Etna)
• Etna Furnace (Boundary Increase) (Mt. Etna)
• Roaring Spring Historic District (Roaring Spring)
• Tyrone Armory (Tyrone)
• Tyrone Borough Historic District (Tyrone)
• Etna Furnace (Williamsburg)
• Royer, Daniel, House (Williamsburg)
• Williamsburg Historic District (Williamsburg)