| hypocaust |
11 |
| I-SITE ULNE Foundation |
1 |
| Iacchus |
1 |
| Iaso |
1 |
| Iatrus |
3 |
| Iatrus Fortress |
7 |
| Iberian Peninsula |
1 |
| Iceland |
5 |
| Icelandic Sagas |
1 |
| icon |
24 |
| icon of St. Theodore Stratilates |
1 |
| icon painter (iconographer) |
3 |
| icon theft |
2 |
| Iconoclasm |
3 |
| iconography |
14 |
| iconostasis |
4 |
| iconostatis |
2 |
| icons |
2 |
| idols |
2 |
| Idyrus |
1 |
| Igneada |
1 |
| Igneada (Tiniada |
2 |
| Igor Lazarenko |
4 |
| Ihtiman |
2 |
| Ilarion Makariopolski (Hilarion of Makariopolis) |
1 |
| Ile-de-France Attacks |
1 |
| Ilham Aliyev |
5 |
| Iliad |
16 |
| Ilientsi |
1 |
| Ilinden-Exochi Border Crossing |
1 |
| Ilinden-Preobrazhenie Uprising |
3 |
| Iliya Kirov |
2 |
| Iliya Shtirkov |
1 |
| Iliya Todev |
1 |
| Iliyan Petrakiev |
14 |
| Ilko Tsvetkov |
6 |
| illegal construction |
3 |
| imaginifer |
1 |
| imago |
1 |
| Imperia |
1 |
| imperial cult |
5 |
| Imperial Germany |
4 |
| Imperial Japan |
4 |
| Imperial Japanese Army |
2 |
| in situ |
1 |
| Independence Day |
9 |
| Independence Square |
5 |
| India |
6 |
| Indian Ocean |
2 |
| Indian Subcontinent |
1 |
| industrialist |
2 |
| industry |
3 |
| Indzhe Voivoda |
1 |
| Infant Christ |
1 |
| infantry |
2 |
| infidels |
3 |
| inflation |
1 |
| ingot |
2 |
| inn |
3 |
| inner city |
2 |
| Inner City Fortress |
3 |
| Inner Mongolia |
1 |
| INRAP |
1 |
| inscription |
44 |
| insignia |
3 |
| Insignia of Power exhibition |
3 |
| Inspectorate for Cultural Heritage Protection |
1 |
| Instanbul University |
2 |
| Institute for Bulgarian Language |
7 |
| Institute for Historical Research |
1 |
| Institute of Archaeology at the University of Warsaw |
1 |
| Institute of Art Studies |
1 |
| Institute of Balkan Studies and Thracology |
2 |
| Institute of Biodiversity and Ecosystem Research |
1 |
| insula |
5 |
| insula buildings |
2 |
| intaglio |
1 |
| intelligence services |
4 |
| interactive exhibition center |
1 |
| Intercession of the Holy Mother of God (Virgin Mary) |
1 |
| Interconnector Bulgaria - Greece |
1 |
| interdisciplinary research |
2 |
| Interdisciplinary Studies magazine |
1 |
| Interior Ministry |
7 |
| intermarriage |
1 |
| International Congress of Thracology |
2 |
| International Council on Monuments and Sites (ICOMOS) |
2 |
| International Council on Museums |
1 |
| International Maritime Organization |
2 |
| International Museum Day |
2 |
| Interpol |
1 |
| Interreg |
7 |
| Interwar Period |
1 |
| invasion of Czechoslovakia |
1 |
| Ioanna Rapti |
1 |
| Iolcus |
1 |
| Ionian Greeks |
2 |
| Ionian pottery |
1 |
| Ionic capital |
1 |
| Ionic Order |
3 |
