Where in the world have you travelled?

[googspecial]

Hey guys - Any tips, suggestions and/or advice?

To kind of reiterate the post post... I too am planning a trip to Europe for 3 weeks ish end of August into September. I have a wedding to attend in Scotland (Central). I was then thinking of hitting some of the cheaper more Eastern countries in Europe afterwards. Started looking at flight prices and it appears Istanbul is one of the cheaper places to return to YYC from.

I am looking at Edinburgh>Krakow>Budapest>Zagreb>Beograd>Sofia>Istanbul. Few days in each city.

Is this too ambitious? I realize that's quite the whirlwind trip. Any places I SHOULD go? And/or skip out? Train vs Bus travel? This is my first major solo trip as a young professional. I am in my mid 20s.

Thanks guys!

[EDIT] I have been to Europe once prior in highschool, (France & Tunisia) as well as a SE Asia tour with my then boyfriend after college