Other than Indian nationals, and Bangladeshi nationals, all visitors to Bhutan require a visa. Bhutanese visas are issued only from Thimphu.
The national flag of Bhutan consists of a white dragon over a yellow and orange background. The flag is divided diagonally from the lower hoist side corner, making two triangles. The upper triangle is yellow and the lower triangle is orange. The dragon is centered along the dividing line, facing away from the hoist side.
I am putting up this Bhutan map for free download after listening to many visitors complaining about the unavailability of a high quality map of Bhutan on the internet. This is just my first attempt, so please bear with the non-creativity. In the future, I plan to make this map more attractive, and informative.