A painting can be out of copyright and thephotograph of it can still be protected.

Plan of St. Peter's, from "Speculum Romanae Magnificentiae"

Antonio da Sangallo, the Younger (d. 1546)

1549 · Engraving

Plan of St. Peter's, from "Speculum Romanae Magnificentiae"

Etienne DuPérac (d. 1604)

1569 · Engraving

Plan of St. Peter's, from "Speculum Romanae Magnificentiae"

Etienne DuPérac (d. 1604)

1569 · Engraving

Treasury House, 10 Downing Street, London: Plan of the First-floor Parlor (Northeast Corner Room)

Isaac Ware (d. 1766)

1732–35 · Pen and black ink

Plans of the Ground and First Floors of the Chateau of Marly

Ange Jacques Gabriel (d. 1782)

1764 · Pen and black and brown ink, brush and gray, and rose wash, over graphite

Lyndhurst for George Merritt, Tarrytown, New York (first floor plan)

Alexander Jackson Davis (d. 1892)

1865 · Watercolor, pen and ink, and graphite

Geometrical Plan of the Garden, Park, and Plantation of Houghton Hall, Norfolk

Isaac Ware (d. 1766)

1735 · Pen and black ink, brush and gray wash

Plan of the Ground Floor (The Great Floor), Houghton Hall, Norfolk

Isaac Ware (d. 1766)

1735 · Pen and black ink, brush and gray wash

Treasury House, 10 Downing Street, London (Plan of First Floor)

William Kent (d. 1748)

1732–35 · Pen and black ink, brush and gray wash

Plan of the first and third floors of the three-story house; the first floor is below street-level, and that is etched in full; the other floor is dotted, from "Antiquités de Pompeïa, tome second, Antiquités de la Grande Grèce..." (Antiquities of Pompeii, volume two, Antiquities of Great Greece...), volume 2, plate 52

Francesco Piranesi (d. 1810)

1806 · Etching

First-floor Plan of Nork, the Seat of Lord Arden, near Epsom

Owen Carter (d. 1859)

1836 · Pen and ink, brush and wash

First Floor Plan for Little House, Peoria Illinois

Frank Lloyd Wright (d. 1959)

1902 · Graphite and colored pencil