Our accommodation in Tengboche is near to the monastery.
This is the oldest Buddhist monastery of the region. For some time periods it is open for the public. We could even enter the praying hall and stay there for a little while. If a high ranked lama is in the monastery than there is the puha ceremony at 3pm that could be seen by visitors as well. We waited for it. This time it was not hold. But it was nice to stay there for a while.