Architecture
In the 3rd century, imperial mausolea began to be built as domed rotundas rather than tumulus structures or other types, following similar monuments by private citizens. Pagan and Christian domed mausolea from this time can be differentiated in that the structures of the buildings also reflect their religious functions. The pagan buildings are typically two story, dimly lit, free-standing structures with a lower crypt area for the remains and an upper area for devotional sacrifice. Christian domed mausolea contain a single well-lit space and are usually attached to a church. The first St. Peter's Basilica would later be built near a preexisting early 3rd century domed rotunda that may have been a mausoleum. In the 5th century the rotunda would be dedicated to St. Andrew and joined to the Mausoleum of Honorius.
Chur Cathedral.
88 Wood Street.
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