Explanation:

- Option 1: Hampi is a UNESCO World Heritage Site and is located in the state of Karnataka, India. It is known for its historical ruins and monuments.

- Option 2: Duduma Waterfall is located on the border of Odisha and Andhra Pradesh. It is not situated in Karnataka. The waterfall is part of the Eastern Ghats.

- Option 3: Mysore Palace is a historic palace situated in Mysore, Karnataka. It is one of the most popular tourist destinations in the state.

- Option 4: Bannerghatta National Park is a biological reserve located near Bangalore in Karnataka. It is famous for its wildlife and safaris.

Correct Answer: 2 - Duduma Waterfall