This is the essential day trip from Kaza. The Key Monastery (Ki Gompa) is Spiti's largest and most iconic Buddhist training centre, dating back to the 11th century. It sits like a fortress atop a conical hill at 4,166 metres, housing beautiful murals and an arsenal of ancient weapons.
Continue to Kibber (once the highest motorable village in the world) and cross the Chicham Bridge. Suspended at a dizzying 4,145 metres above a 1,000-foot deep gorge, it is Asia's highest bridge and a spectacular feat of engineering on the Spiti circuit.