The correct answer is option 1, Ranchi. A stupa is a Buddhist monument that typically contains relics or sacred objects. It is a dome-shaped structure that represents the enlightened mind of Buddha.
Option 2, Sanchi, is known for its famous Stupa 1, one of the oldest stone structures in India. Option 3, Barhut, is also known for its ancient Stupa which is adorned with intricate carvings. Option 4, Dhamek, is a popular Buddhist site in Sarnath, Uttar Pradesh, where a massive Stupa marks the spot where Buddha is said to have given his first sermon.
Therefore, the only option from the given choices that does not have a Stupa is option 1, Ranchi.