Paro is a historic town with many sacred sites and historical buildings scattered through the area. In addition, the Paro Valley is wide and verdant and is recognized a one of the most beautiful in all Bhutan. Prefer to stay in Paro if you are someone who is fond of nature and would like to spend quiet and peaceful time. However, apart from the main street (which is constructed of traditional wooden structures), the bazaar area is a nondescript hodgepodge of concrete buildings that is totally bereft of charm and character. Along with Jakar and Punakha, Paro forms the 'golden triangle' of popular tourist destinations in Bhutan.
Thimphu is the capital and largest city of Bhutan. It is situated in the western central part of Bhutan and the surrounding valley is one of Bhutan's dzongkhags, the Thimphu District. The city became the capital of Bhutan in 1961. As of 2005 it had a population of 79,185 with 98,676 people living in the entire Thimphu district.
The city is spread out longitudinally in a north-south direction on the west bank of the valley formed by the Wang Chuu, also known as the Thimphu Chuu River. Thimphu is spread over an altitudinal range between 2,248 metres (7,375 ft) and 2,648 metres (8,688 ft). Unusually for a capital city, Thimphu is not served by an airport, but relies on the airport at Paro, connected by road some 54 kilometres (34 mi) away.
Kolkata (formerly Calcutta) is the capital of West Bengal and one of the largest cities in India. It is also the largest city in the historic region of Bengal (today's West Bengal and Bangladesh). Kolkata is an 'in your face' city that shocks and charms the unsuspecting visitor. Long known as the cultural capital of India and home to the Bengal Renaissance, Kolkata continues to spawn generations of poets, writers and film directors. If your trip only allows for a visit of one or two of India's metropolitan cities, than definitely consider placing Kolkata on your itinerary. Love it or hate it, you definitely won't forget the city on the Hooghly river bank.
Kathmandu, the capital of Nepal, is one of the most picturesque capitals in the world. The city of Kathmandu derives its name from Kasthamandap, an imposing wooden pagoda near the Hanuman Dhoka Palace. This city was built by King Gunakama Dev in 723 AD. The original name of the city was Kantipur, the glamorous city. Kathmandu is situated at an altitude of 1,336 m above sea level, and surrounded by high mountains all around, with the white peaks looking down and can be viewed clearly from vantage points at the foothills around Kathmandu.