"The Persistence of Memory"

Salvador Dalí, 1931

"Starry Night"
Vincent van Gogh, 1889

"Dora Maar au Chat"
Pablo Picasso, 1941

"Mona Lisa (La Gioconda)"
Leonardo da Vinci, 1503-1506

"Side-Elevation View of Precast Spiral Stairs"
Kelvin Choo, 2010