Qila Mubarak Bathinda (Razia Sultan Fort)
Qila Mubarak Bathinda (Razia Sultan Fort), Bathinda and Southwestern Forts, Punjab, India
Dating back to the Kushana period (roughly 90–110 CE), Qila Mubarak Bathinda is one of India's oldest surviving brick forts. Constructed with ancient thin burnt bricks, it was here that Delhi's first female monarch Empress Razia Sultan was defeated and incarcerated in 1240, and Guru Gobind Singh later visited in 1705.