Paro
Paro town is all about 2 main parallel roads! It has a population of a little over 11,000. The buildings look by and large similar and I was told that is because of a building code that is enforced strictly. There is a National Museum located on a hill(the old circular building was damaged during an earthquake and is still under renovation) and the Rinpung Dzong, the fortress with a Buddhist shrine located almost at the base of the same hill.
Paro Main Street 
Rinpung Dzong, Paro 
Paro valley
Then there is Kichu Lakhang, a historic Buddhist temple and Drugyel Dzong, which is being restored and hence I could only take pictures from outside. On clear days, Mount Jomolhari is visible from here.
Many tourists also visit the view point above the airport in the morning hours when planes land and take off. You get a clear view of the entire runway and beyond and you can watch the planes coming over the hills and taking a sharp turn before landing.
One full day is good enough for the above sights.
What else to do in Paro
The options I chose are as follows:
Day trip to Thimphu. See below.
Day trip to Thimphu, the capital city
The road to Thimphu is well maintained and the distance of about 50kms was covered in 80 minutes. Thimphu has a population little more than 1.2 lakhs. In terms of hotels and restaurants, there is far greater variety than Paro.
Key attractions include the Buddha Dordenma-Buddha statue on a hill overlooking the valley and said to be the tallest Buddha at 177 ft, Tashichho Dzong-the monastery and fortress which today is the seat of the Bhutan government, Memorial Chorten-a Buddhist Stupa and Motithang Takin Preserve-where the endangered national animal of Bhutan, Takin, can be found. In addition, there are museums, palaces and monasteries that may be visited if you have time.
Buddha Dordenma
If you are in mood for shopping, do visit the handicrafts market opposite Taj Tashi hotel. All hand made stuff. A number of shops in one row are located here. For souvenirs, better to visit souvenir shops or buy in Paro.
Entry fee for Indians
There is entry fee of Nu/INR 300 per person at Rinpung Dzong, Kichu Lakhnag and Buddha Dordenma etc for Indians and nationals from SAARC countries. A guide, if available, comes free. Logic being Indians don’t pay the fixed sum per day like nationals of other than SAARC countries. Elsewhere, like the National Museum and Takin Preserve, the entry fee is nominal.
If you are travelling with school going kids, do carry their school ID card. Students get 50% concession.
