Официальный туристический портал Болгарии:
[Visit Bulgaria](https://www.bulgariatravel.org/en/)
Туристические агентства:
[Alltours](https://www.alltours.de/reisen/bulgarien)
[DER Touristik](https://www.dertouristik.com/bulgarien)
[TUI](https://www.tui.com/urlaub/bulgarien)
[FTI Touristik](https://www.fti.de/bulgarien)
[Thomas Cook](https://www.thomascook.de/bulgarien)
Блоги и сайты путешествий:
[The Broke Backpacker](https://brokebackpackers.com/bulgaria-backpacking-guide/)
[Backpacker Banter](https://www.backpackerbanter.com/bulgaria/)
[WildJunket](https://www.wildjunket.com/travel-guide-bulgaria/)
[TripSavvy](https://www.tripsavvy.com/bulgaria-4063168)
[Lonely Planet](https://www.lonelyplanet.com/bulgaria)
Новости о туризме в Болгарии:
[Novinite](https://www.novinite.com/category/tourism/)
[Sofia News Agency](https://www.novinite.com/category/tourism/)
[Bulgarian News Agency](https://www.bta.bg/en/category/20106/Tourism)
Информация о достопримечательностях:
[UNESCO World Heritage Sites in Bulgaria](https://whc.unesco.org/en/statesparties/bg)
[10 Most Popular Tourist Attractions in Bulgaria](https://www.planetware.com/tourist-attractions/bulgaria-bul.htm)
[The 7 Ancient Wonders of Bulgaria](https://www.ancient-origins.net/ancient-places-europe/7-ancient-wonders-bulgaria-0011420)
Советы по путешествию:
[Safety Tips for Traveling to Bulgaria](https://www.smartraveller.gov.au/destinations/europe/bulgaria/safety)
[Essential Travel Tips for Visiting Bulgaria](https://www.goeuro.com/travel-blog/essential-bulgaria-travel-tips/)
[The Ultimate Bulgaria Travel Guide](https://www.earthtrekkers.com/blog/the-ultimate-bulgaria-travel-guide-i-will-live-here-someday/)