Elgin on Wikipedia.
 

Calvary Tabernacle (United Pentecostal). © Martin Briscoe.

Elgin Cathedral (ruin) on King Street. © Martin Briscoe. An old photo (ca. 19030's), from Colin Waters' Collection. Another view, © Alex Parker, and another, © Rob Kinnon-Brettle. Link.

Holy Trinity (1826, Episcopal, open most days); two interior views - 1, 2, both © Charles Clegg (2012).

St. Giles on High Street. © Alex Parker. Link.

The former Salvation Army hall on South Street. After it's closure it was for a time an antiques shop, but it's now disused. © Rob Kinnon-Brettle.

True Jesus Church. © Martin Briscoe.

A so-far un-named former church on Moss Street, now a curry house. NJ 2173 6274. © Rob Kinnon-Brettle. Howard Richter advises that this was a United Presbyterian Church dating from 1858. It became a United Free Church after the union in 1900, and it became a church hall at some unknown date, but before 1964/5. Link (which has more photos, and a detailed description). Grade C listed.