Overlooking Thimpu is the biggest sitting Buddha in the world. My advice is to get there early before the hoardes of tourists get there. Its very imposing and impressive and well worth the trip up.

We visited in the early morning in fairly cloudy conditions but nevertheless we had a thoroughly enjoyable visit. The Buddha is the tallest sitting Buddha in the world at a little over 51 meters and set on a hill overlooking the Thimphu valley.
The statue is certainly very imposing and offers great photo opportunities. The interior of the monument houses over 100,000 Buddha statues which are well worth a visit on their own
The monument is expected to be completed within the next year or so and will then be super impressive but in the meantime it is still a significant building achievement

This is said to be the tallest sitting Buddha in the world. It is still under construction but very majestic and is visible from most parts of Thimphu.