We were back in Paro almost at the end of our trip.

This tall white building is a Utse, and is for monastic rather than administrative purposes.  In Bhutan monasteries and government offices shared the space in the Dzong (fort) for mutual security 

The windows often get larger on the higher floor where the risk from intruders was less.

Young monks accepting donations.

The Ta Dzong (watchtower) was built in 1651 in  the auspicious shape of a  conch shell. It sat high above Rinpung Dzong to warn of invasion. 

It now houses the National Museum rather than captured  invaders. 

It was fascinating to visit the 11 galleries over five floors. Of all the wonderful things inside I liked the stamps best, really beautiful and unexpected which is probably why they caught my eye. 

 It is by far the best museum we saw and a must see in Bhutan.