You can look at the words in front and behind it, because they refer to this big word. You may find a synonym of the word or a close reference. So for example in this sentence: I was excited and ambitious to learn about cars today. So this is a easy example. You can use exited to define ambitious if you dont know what ambitious means.
I would suggest the internet, there are tons of websites out there that contain tons of research regarding tourist sites in Alaska. However, since there are some unreliable sites out there, check out travel magazines and etc with a focus on Alaska that might help you!