Signs and announcements are in Bulgarian and English — perfect reading practice: "вход"
(entrance), "изход"
(exit), "станция"
(station), "посока"
(direction). You can pay for a single ride with a contactless bank card right at the turnstile. The main interchange station is "Сердика"
.
Explore Bulgaria
The Sofia metro
The Sofia metro is fast, clean and easy: several lines link the centre with the suburbs and the airport.

Ale.ch.geor · CC BY 4.0 · Source
History of Bulgaria
An illustrated history of Bulgaria
Explore Bulgaria

SPARKY358 · CC BY 4.0 · Source
By train
Bulgarian trains (run by БДЖ) are slow but cheap and scenic — the lines through the Iskar Gorge and the Rhodopes are beautiful.

Staryyeyes · CC BY-SA 4.0 · Source
Mountains and huts
Bulgaria is a land of mountains: Rila, Pirin, the Rhodopes, Vitosha right above Sofia, and the long Balkan range, "Стара планина"
.

Nenko Lazarov · CC BY 2.5 · Source
The Black Sea
For Bulgarians, summer means "море"
.