Monumental Chaitya (Stupa). Many more pictures are documented under https://www.facebook.com/ChivaChaitya/photos/. Used classification : Votive Chaityas (Small Chaityas), Monumental Chaityas (Mahachaityas), Stupas and Tibetan Chorten.
Foto by Prabin P. Amar in https://get.google.com/albumarchive/114595696109916527463
Foto by F. Nunnemann in 2014 A.D.
Foto by Ganesh Paudel in http://commons.wikimedia.org/wiki/Category:Cultural_heritage_monuments_in_Kathmandu_District