The Maratha ruler Shivaji assigned Moropant Trimbak Pingle, his prime minister, to undertake the construction of this fort in order to defend the banks of the Nira and the Koyna rivers, and to defend the Par pass. It was completed in 1656.[5][6] The Battle of Pratapgad between Shivaji and Afzal Khan, a general of Adil Shahi dynasty, was fought below the ramparts of this fort on 10 November 1659. This was the first major test of the fledgling kingdom's army, and set the stage of the establishment of the Maratha empire.

There is a picnic area and a newly constructed platform which gives a good view of the waterfall. This platform can be entered in the valley, but it is not safe to do so when it is raining heavily. One can spot many birds near the waterfall. People visit from all over to visit the Thoseghar Waterfalls especially during the rainy or monsoon season. Heavy rain falls during that season and because of this the falls have more water and are more spectacular

Vajrai is known as a devotional place. Also this place is known as Vajrai Waterfall. According to people of there, Marathi Saint Samarth Ramdas Swami has climbed this mountain in 3 footsteps because of that straight Vajrai Waterfall mountain is converted into three stair waterfall mountain. Vajrai Waterfall is situated at the Sahyadri hills near Satara. As per geographical view, Vajrai Waterfall's height is around 853 ft. The backwaters of Vajrai Waterfall are known as Urmodi river Project. Vajrai Waterfall can be reached through Kaas Road .

Sri Kashi Vishweshwar Temple is situated in Sangam Mahuli and is dedicated to Lord Shiva. The temple was built in 1735 CE by Shripatrao Pant Pratinidhi. This land was donated by Shahu Maharaj to Shripatrao Pant Pratinidhi, as a Brahman dakshina. Pant Pratinidhi donated the land to another Brahmin, Anant Bhat Galande.

Ajinkyatara Fort was built in the 16th century by Raja Bhoj of the Shilhara dynasty. Throughout its history, the fort witnessed several pivotal moments in Maratha history. In 1673 CE, Chhatrapati Shivaji Maharaj took control of the fort from Adil Shah. Subsequently, between 1700 CE and 1706 CE, the fort was under the control of Mughal Emperor, Aurangzeb. In 1708 CE, Shahu Maharaj conquered Ajinkyatara, which remained with the Marathas until the British seized the fort in 1818 AD. Notably, Tarabai Raje Bhonsale captured the fort from the Mughals and renamed it Ajinkyatara. During the Mughal rule, the fort was known as Azamara.

The main purpose of the dam is hydroelectricity with some irrigation in neighboring areas. Today the Koyna Hydroelectric Project is the largest completed hydroelectric power plant in India[2] having a total installed capacity of 1,960 MW. Due to its electricity generating potential, Koyna river is considered as the 'life line of Maharashtra'.[3] The spillway of the dam is located at the center. It has 6 radial gates. The dam plays a vital role of flood controlling in monsoon season. The catchment area dams the Koyna river and forms the Shivasagar Lake which is approximately 50 km (31 mi) in length. It is one of the largest civil engineering projects commissioned after Indian independence. The Koyna hydro-electric project is run by the Maharashtra State Electricity Board

Phaltan was one of the non-salute Maratha princely states of British India, under the central division of the Bombay presidency. It measured 397 square miles (1,028 km2) in area. According to the 1901 census, the population decreased by 31% to 45,739; the town's population was 9,512 in that year. In 1901, the state enjoyed revenue estimated at £13,000, and paid a tribute of £640 to the British Raj. Its flag was a rectangular bicolor, orange over green. The Hindu ruling family was descended from Naik Nimbaji Nimbalkar (1284–1291). The ruler had the title of raja or Naik Nimbalkar. Maharani Sai Bhonsale, the first wife of the 17th century Maratha leader Shivaji, was from Phaltan. The last ruler of Phaltan was Major HH Raja Bahadur Shrimant Malojirao Mudhojirao Nanasaheb Naik Nimbalkar IV.