The Classicist Blog:
Details of highly ornate Roman and Renaissance Columns that are called the Composite Order.
A Glossary for Architectural Rubberneckers
"... as with birds in a forest or the varieties of beer, more basic identifications enrich the understanding of the network of architecture that overlays our city."http://www.nytimes.com/2012/04/29/realestate/streetscapes-useful-vocabulary-for-building-watchers.html?ref=streetscapes
Read more about NYC architectural details here.