diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,9 +1,13 @@
 # STAC on Cassandra
 
+## Architecture
+
+![Architecture.Cass.Stac.png](img/Architecture.Cass.Stac.png)
+
 The application uses Spring Data Cassandra and DataStax Astra DB to build a REST API for
 a [Spatio-Temporal Asset Catalog (STAC)](https://stacspec.org/en) that can scale to hundreds of billions of STAC items.
 
-![img.png](img/img.png)
+![Swagger UI](img/img.png)
 
 ## Objectives