Paro (2195 m above the sea level), west to the capital is one of the most beautiful valleys you will ever see. Extending from the confluence of the Paro Chhu and the Wang Chhu rivers at Chuzom, Paro should definitely be on your must visit place.
Characterized by fertile paddy fields, a steady flowing meandering river, a peaceful pastoral setting, beautiful orchards and the only international airport in the country… Paro will mesmerize you. 
Here are some of the things you shouldn’t miss.

Tiger’s Nest or Paro Taktshang 

Literally hanging from the face of a cliff 3120m above sea level, Paro Taktshang tops the list of places you shouldn’t miss in Bhutan. The legend has it that the great master of Buddhism, Guru Rinpoche flew to Bhutan on a mythical tigress and meditated in a cave here.

The National Museum 

The Naional Museum hosts arts and artefacts collected from different eras, some as old as 2000 B.C. A visit through the galleries of the National Museum will be like a travel story of our country’s transition from the primitive days of isolation to the country we are now.

Paro dzong 

The fortress of Paro, also known as Rinpung Dzong houses the district’s monastic body and government’s administrative offices. This large dzong serves as one of the finest examples of the beauty and complexity of Bhutanese architecture. 
Well these are just few things you shouldn’t miss, there is more to it. Just visit.