The image shows the Great Stupa at Sanchi, one of the oldest and most significant stone structures in India. It was originally commissioned by Emperor Ashoka in the 3rd century BCE and holds relics of the Buddha. The dome-shaped structure is used for meditation and veneration in Buddhism. Its architectural style and religious significance make it a prominent ancient Buddhist site.
Explanation of Other Options:
(A) Taxila University: The remains of Taxila are rectangular and classroom-like, not stupa-shaped.
(B) Traditional Institute: The structure is religious, not primarily educational.
(D) Dholavira Residences: Dholavira is from the Harappan Civilization and features grid-based, non-circular designs.