Answer:
“The Persistence of Memory” by Salvador Dalí.
A precise definition of Surrealism can be difficult to grasp, but it's clear that this once avant-garde movement has staying power, remaining one of the most approachable art genres, even today. Imaginative imagery spurred by the subconscious is a hallmark of this type of art, which started in the 1920s. The movement began when a group of visual artists adopted automatism, a technique that relied on the subconscious for creativity. Tapping into the appeal for artists to liberate themselves from restriction and take on total creative freedom, Surrealists often challenged perceptions and reality in their artwork. Part of this came from the juxtaposition of a realistic painting style with unconventional, and unrealistic, subject matters.
When Dalí painted The Persistence of Memory, his artistic practice was guided by the peculiar “paranoiac-critical method.” Developed by the artist in 1930, the technique relies on self-induced paranoia and hallucinations to facilitate a work of art. This method was particularly instrumental in the creation of Dalí's “hand-painted dream photographs,” a collection of works that are stylistically rooted in realism yet unrealistic in subject matter. Though set in a realistically-rendered landscape, The Persistence of Memory features bizarre subject matter evocative of a dream. While the actual inspiration behind the scene is up for debate (art historians recall Einstein's theory; Dalí comically mentioned Camembert cheese), the odd iconography of the painting is characteristic of the Surrealist movement.
A set of melting clocks—or “soft watches,” as many Surrealists have called them—are scattered across the composition. These fascinating timepieces appear to have lost their integrity, as they're limply draped over a tree branch or sliding off of an ambiguous platform. A single pocket watch, which remains closed, retains its structure, though an army of ants ominously cover its case.