| Code | Description | Items |
|---|---|---|
| 720 | Architecture | 335 |
| 721 | Architectural structure | 15 |
| 722 | Architecture to ca. 300 | 15 |
| 723 | Architecture from ca. 300 to 1399 | 19 |
| 724 | Architecture from 1400 | 51 |
| 725 | Public structures | 94 |
| 726 | Buildings for religious purposes | 252 |
| 727 | Buildings for education & research | 13 |
| 728 | Residential & related buildings | 192 |
| 729 | Design & decoration | 10 |