As art is subjective and varies in interpretation, what one person finds disturbing, another might find inspiring. However, here is a list of five art pieces that are widely considered to be disturbing:

• 1. "The Garden of Earthly Delights" by Hieronymus Bosch - This triptych features disturbing and surreal imagery, including scenes of heaven, hell, and the debauchery of the earthly world.
• 2. "Judith Slaying Holofernes" by Artemisia Gentileschi - This painting portrays the brutal beheading of the Assyrian general Holofernes by the Israelite heroine Judith.
• 3. "The Descent from the Cross" by Rogier van der Weyden - This painting depicts the mournful scene of Jesus being taken down from the cross and features a deeply moving and emotive representation of the suffering of the Christ.
• 4. "The Scream" by Edvard Munch - This iconic painting is widely considered to be a masterpiece of modern art and depicts a figure in agony, with a haunting expression of terror and despair.
• 5. "The Nightmare" by Henry Fuseli - This painting depicts a sleeping woman being terrorized by a demonic figure, and is considered a masterpiece of the Romantic movement and an early example of the Gothic genre.

It is important to note that these works are considered disturbing in part because of the context and the cultural norms and values of their time. The artistic value of these pieces, however, cannot be denied, as they offer unique and powerful perspectives on the human experience and the complexities of the world.