Country quiz · Europe
Bulgaria quiz
Bulgaria shows up in 7 quizzes: outline, flag, 6 Explorer photos, the Europe map, capital and 3 trivia questions. Nesebar and Monastery of Saint John of Rila are among its 6 photos.
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8 questions about Bulgaria only, mixed from every pack it appears in. Scored on the spot.
Bulgaria at a glance
| Capital | Sofia |
|---|---|
| Continent | Europe |
| Location | Southeastern Europe, bordering the Black Sea, between Romania and Turkey |
| Population | 6.7 million (2025 estimate), 107th of 196 |
| Area | 110,879 km², 101st of 196 |
| People per km² | 61 |
| Land borders | Romania (605 km), Greece (472 km), Serbia (344 km), Turkey (223 km), North Macedonia (162 km) |
| Coastline | 354 km |
| Highest point | Musala, 2,925 m |
| Official language | Bulgarian |
| Flag colours | white, green and red |
| Drives on the | right |
| Calling code | +359 |
| Terrain | Mostly mountains with lowlands in north and southeast |
| Climate | Temperate; cold, damp winters; hot, dry summers |
| Where the name comes from | Named after the Bulgar tribes who settled the lower Balkan region in the 7th century A.D.; the tribal name may come from the Turkic word bulga, or "mixed," referring to the blend of Turkic and Slavic ethnicities in the tribes |
| In our quizzes | 7 packs |
Of 5 land neighbours, Romania shares the longest border with Bulgaria (605 km) and North Macedonia the shortest (162 km); there are also 354 km of coast. By area Bulgaria is 101st of 196 countries, just behind Liberia and ahead of Cuba.
Facts from the CIA World Factbook and Wikidata; questions from our quiz packs. Updated .
Where it is
Places to find
6 in Explorer
A Black Sea old town on a rocky peninsula, dense with medieval churches.
Photo: Chrumps / CC BY-SA 4.0, via Wikimedia Commons licence
Bulgaria's largest monastery, striped arcades in a mountain valley.
Photo: Raggatt2000 / CC BY-SA 3.0, via Wikimedia Commons licence
The highest peak in the Balkans at 2,925 metres, in the Rila mountains.
Photo: Public domain, via Wikimedia Commons
Sofia's gold-domed cathedral, one of the largest Orthodox churches in the world.
Photo: Plamen Agov (user:MrPanyGoff) / CC BY-SA 4.0, via Wikimedia Commons licence
Marble peaks and 176 glacial lakes in Bulgaria's southwest.
Photo: kallerna / CC BY-SA 4.0, via Wikimedia Commons licence
Revival-era houses over a Roman theatre in one of Europe's oldest cities.
Photo: Laurens R. Krol / CC BY 4.0, via Wikimedia Commons licenceQuestions we ask
5| Question | Answer |
|---|---|
| Which country's capital is Sofia? | Bulgaria |
| What is the capital of Bulgaria? | Sofia |
| In which year did Bulgaria join the European Union? | 2007 |
| As of 2026, which country was the most recent to switch to the euro? | Bulgaria |
| In which year did Bulgaria and Romania fully join the Schengen area, with no more land border checks? | 2025 |
The Bulgaria questions
Romania is a wrong choice for Sofia and again for Bulgaria's outline. In the flag round the other choices are Hungary, Italy and Iran. For the outline, the other choices are Romania, Greece and Serbia.
One trivia question is “In which year did Bulgaria join the European Union?” (2007). Then: “As of 2026, which country was the most recent to switch to the euro?” (Bulgaria). Explorer pins 6 photos in Bulgaria, Nesebar and Monastery of Saint John of Rila among them.
Every Bulgaria question, with streaks and a leaderboard, is in the app.
PlayQuestions and answers
Which continent is Bulgaria in?
Bulgaria is in Europe.
What is the population of Bulgaria?
About 6.7 million (2025 estimate).
Which countries border Bulgaria?
Bulgaria borders Romania, Greece, Serbia, Turkey and North Macedonia.
What is the highest point in Bulgaria?
Musala, at 2,925 m.
What is the official language of Bulgaria?
Bulgarian.