Bas-reliefs are a type of sculpture where the figures are carved into a flat surface, creating a three-dimensional effect. Unlike fully rounded sculptures, bas-reliefs are attached to a background and project only slightly from it. This technique is often used in architecture and decorative arts to depict scenes or figures in a more subtle way. Commonly found in ancient Egyptian and Greek art, bas-reliefs can illustrate historical events, religious themes, or everyday life. They are typically made from materials like stone, wood, or plaster, and can be seen on buildings, monuments, and various artifacts, adding depth and narrative to the surfaces they adorn.