The main attraction in Thimmamma Marrimanu is the Great Banyan Tree itself, a UNESCO World Heritage Site and one of the largest trees in the world. Visitors can explore the vast canopy of the tree, enjoy picnics in its shade, and marvel at its sheer size and beauty. Other nearby attractions include Belum Caves, Gandikota Fort, and Ahobilam Temple, all offering unique experiences and historical significance that are worth exploring during your visit to Thimmamma Marrimanu.