If you travel from the US to Poland, you would pass no Eastern European nations, as Poland is one the westernmost Eastern European nations. You would travel across the Atlantic Ocean, most likely through countries such as France and Germany, and then arrive in Poland.
The Danube River passes through 9 European countries on its way to the Black Sea. Those countries include Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, and Ukraine.
No.
As Bulgaria is a member of EU, Bulgarians freely move and pass though EU countries
The Arctic Circle does not pass through any South American countries.
In "I Am David," the protagonist, David, travels through several countries as he escapes from a concentration camp. He starts in Bulgaria, then moves through Italy, and finally makes his way to Denmark. His journey reflects his struggles for freedom and self-discovery as he navigates different landscapes and encounters various people along the way.
The Black Sea is not a country but it is a sea, that can only be entered by ocean going ships from the Mediterranean Sea through the Bosporus. The Black Sea is surrounded by the coastlines of 6 nations. They are Turkey, Bulgaria, Romania, the Ukraine, Russia and Georgia.
Roads could be high/low depends on the terrain it is! Most of the intercity roads pass through high altitude to some places(because Bulgaria is mountaneous)
The Antarctic Circle does not pass through any countries.
None.
Antarctica does not pass through any countries. Antarctica is a continent that sits on its own. Antarctica is commonly referred to as the South Pole.
The equator does not pass through Europe. It passes through Africa, South America, the Gilbert Islands (Kiribati), and Indonesia in Asia.