Below are the list of place to visit in McLeodganj: (1) Masroor Temple
(2) Bhagsu Falls
(3) Nechung Monastery
(4) Guna Devi Temple
(5) St. John’s Church
(6) Tibetan Museum If you like my response satisfied your question, please up vote.
Triund trekking starts from there. It is 9 km trekk one side. It one of India's most famous trekks. The trekking worth it. There is a also a Buddhist monastery there. Calm place. The town it's own has an exceptional beauty.
Do the triund trek for sure. Bhagsu waterfall is great for photography and a dip in the cold waters. As long as you're in mcleodganj do visit the monastery as well.