Literary sources:
"Encyclopedia Sofia", BAS, Publishing House "Trud"
„My hometown Sofia”, author Raina Kostentseva
“Sofia in the long past”, author Magdalina Stancheva
“The Forgotten Loners” /Unknown Sofia stories/, author Iskra Tsenkova
"Bohemian Sofia". ”101 detours in Sofia” author Ivan Mihalev
“ Sofia Street Oborishte”, author Alexander Zlatarski
Stolica.bg
Stara Sofia Blog
Wikipedia
SU "St. Kliment Ohridski"
SU "St. Kliment Ohridski"
Wikipedia
ISofia
trafficnews.bg
Following the steps
Historicalroutes.bg
Bulgarian monuments
Stolica.bg
literatours
peika.bg
Building of the Year
Ecocommunity Foundation
National Gallery
Opoznai.bg
Galena's corner
altersofia
Luximmo
Wikipedia
Stara Sofia Blog
Epicenter
The Red House
National Gallery
City Girls
trafficnews
Traveller's Club
g8Cinema
The Dolls Art House and Museum
Capital
Vestnik Stroitel
Capital
University Library
Gradored
Capital
Astronomical Observatory
Historical Routes
Moscow Cultural and Business Center
Standart news
Capital
24 hours
Wikipedia
BNR
Agrozona
Capital
URBO
ocenime.bg
graffiti.bg
topbrainscience
Get to know
Objects
sofiagraffititour
City Girls
Objects
Broadbow
Bacchus
Fest BG
Current
Eurosport
Facebook Event
Facebook Event
Club 1857
Sofia Restaurant Week
The magic of water
Explore
Explore
I'm going
Grad Bankya
Stara Sofia
ClubZ
Bee bed
Museum of Illusions
Pancho Vladigerov House-Museum
National Literary Museum
House of Horrors
Shared Space
TRAK
Ploshtadslaveikov
Capital
Matzalo
Dali Vino
ClubZ
CARVE
AREA 52
Under The Line
Club Carcassonne
Climb Academy
chitalnyata