Dharahara (Nepali: धरहरा), also called Bhimsen Tower, is a nine story (61.88m) tall tower at the center of Sundhara, Kathmandu. It is situated in the historical city of Kathmandu, and is a part of Architecture of Kathmandu recognized by UNESCO. It was built in 1832 by the Prime Minister of the time, Bhimsen Thapa of Nepal. Bhimsen Thapa built the tower under the orders of Queen Lalit Tripura Sundari.
The tower has a spiral staircase containing 213 steps. 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.
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