Which historical monument is NOT located in Karnataka?

Palakkad Fort is located in Kerala, not Karnataka. Built by Hyder Ali, it remains an important historical landmark in Kerala state. The other monuments—Kittur Fort (site of Rani Channamma's 1824 rebellion against British rule), Hoysaleswara Temple (a magnificent Hoysala architecture example in Halebidu), and Gol Gumbaz (known for one of the world's largest domes and housing Sultan Muhammad Adil Shah's tomb in Bijapur)—are all situated within Karnataka's borders.