The Red Fort in Delhi, built by Shah Jahan, primarily used which architectural material?
- Red sandstone
- Marble
- Granite
- Brick
Answer: Red sandstone
Red Fort (Lal Qila) in Delhi, completed in 1648, is built primarily of red sandstone with marble inlays. Designed by Ustad Ahmad Lahori, it exemplifies Mughal architecture and is a UNESCO World Heritage Site.