Dharahara (Nepali: धरहरा), also called Bhimsen Tower, is a nine story (50.2m) tall tower at the center of Kathmandu sundhara. It was built in 1832 by the Prime Minister of the time, Bhimsen Thapa of Nepal. The tower has a spiral staircase inside containing 113 steps and 25 steps outside it . The 8th floor holds a circular balcony for observers that provides a panoramic view of the whole Kathmandu valley. The tower has a 5.2m bronze mast on the roof. The tower has been open for the general public since 2005 for a small fee.
Hundreds of structures crashed to the ground including Dharahara on 25 April 2015, Saturday when the 7.8 Richter scale earthquake struck Nepal.