Note Flagship — 75,313 public-domain paintings, structured captions (CC0-1.0)

Note Animals & the natural world — 31.5k mixed-medium works (CC0-1.0)

Note Human-made objects & decorative arts — 25.8k (CC0-1.0)

Note Mythological & fantastical beings — 12.9k (CC0-1.0)

Note Painting-forward fine-art core — 13.8k (CC0-1.0)

Note The human figure & portraiture — 28.0k (CC0-1.0)

Note Unattributed old masters (CC0-1.0)

Note Impressionist movement (CC0-1.0)

Note Landscape genre (CC0-1.0)

Note Portrait genre (CC0-1.0)

Note Religious / biblical (CC0-1.0)

Note Renaissance period (CC0-1.0)

Note Baroque period (CC0-1.0)

Note Impressionist landscapes, cross-cut (CC0-1.0)

Note Vincent van Gogh (CC0-1.0)

Note Japanese woodblock prints (CC0-1.0)

Note Claude Monet (CC0-1.0)

Note Rembrandt (CC0-1.0)

Note Pierre-Auguste Renoir (CC0-1.0)