If you're a fan of HBO's Game of Thrones, George R.R. Martin's A Song of Ice and Fire series, or BOTH like I am, then this will be super helpful for you. Martin's extremely vast and detailed world can be a bit overwhelming and it is very easy to lose track of where, exactly, cities like King's Landing and Harrenhal are, and where in Pentos are the cities that the Khaleesi is currently liberating. COMPLETE WITH SPOILER CONTROLS for those of you not fully caught up on the show!
Check out this interactive map of Westeros and Pentos: