Hi Poornima, In Thimpu city you can visit Tashichho Dzong, Buddha Dordenma, Changlimithang Stadium & Archery Ground, Thimphu Chorten, Memorial Chorten, and several other beautiful places. In Paro, you can visit Chele La pass, Taktsang monastary, Rinpung Dzong, Kyichu Lhakhang, National Museum. You can find detailed itinerary for Bhutan here: https://www.tripoto.com/trip/places-to-visit-in-bhutan Keep exploring!