This is the red-hot liquid that flows from a volcanic eruption.
Small and recently re-classified as a dwarf planet, this is the littlest planet found furthest out in our solar system
Pluto
Austria
Vienna
Hi mom, I am in a boat on the river Thames
London
This is the name of a mountain and a boulevard in Sofia
Vitosha
This is the remains of an animal or plant from a long time ago
fossil
This is the 8th planet from the Sun, and is made of mostly hydrogen, helium, and methane gas.
Neptune
China
Beijing
Dear dad: Please send some rubles as they don't take credit cards in Red Square.
Moscow
This is the most visited group of lakes in Bulgaria.
7 Rila Lakes
This natural gem commonly found in jewelry is one of the hardest minerals on the Mohs scale.
diamond
This is the innermost part of the sun where it's energy is generated.
the core
Algeria
Algiers
Hi Gabriel. Talk about global warming, this city is flooded and I can only get around on a gondola.
Venice
How many countries does Bulgaria border?
5 (Serbia, North Macedonia, Greece, Turkey, Romania)
It was once considered the Supercontinent and is now broken up into seven continents.
Pangea
If you were standing on a planet looking up at the moons Europa, Callisto and Ganymede, what planet would you be on?
Jupiter
Indonesia
Jakarta
Hi Fiona, I had a "devil" of a time getting to this island that is 240km south of Australia.
Tasmania
This is the tallest peak in the Balkans
Musala
This is the scientific theory in which the event led to the formation of the Universe.
The Big Bang Theory
This is a large rotating cloud of dust and hydrogen gas
Nebula
South Sudan
Juba
Dear Michael, I have just left Paraguay to go visit the only other landlocked country in South America. It is absolutely gorgeous!! It is hard to believe.
Bolivia
This is a famous formation of rocks in Northwest Bulgaria
Belogradchik Rocks