The Island of Paradis is on the country of Madagascar, which is then followed by Africa and the other continents, (Look at bottom of the page) http://attackontitan.wikia.com/wiki/Eldia. As it's said that Titans were created by The subjects of Ymir, outside of The Walls. As the population of Titans wiped out more than 99% of the current world population today, leaving us to 1 million, yes, their are Titans outside of The Walls, just stranded outside of Paradis.
There are even Titans still on the island but outside of the actual walls, before Wall Maria was knocked out by the Colossal Titan. Oh yeah, you also wanted to see if theirs anything else besides Titans. Of course. After humanity had shrunk off to the walls, the cities like New York, Tokyo, London, Sydney, Beijing, all gone. They have been in the wreck by the destruction of the Titans. Their is also still remains of forests, and Roman cities from the BCs.
Conclusion: Their are Titans beyond the regions of the walls, and outside the island of Paridis and off Globaly, but without human society with them. Shown that the amount of Titans outside The Walls is prodigious. The cities and towns of Earth is all wiped out, except for dead monuments.