Can't believe nobody has mentioned 'The Lion King' by Hans Zimmer. Classic score.http://www.youtube.com/watch?v=2IS3v6EtMhE
The entire of this takes me to the heart of Africa - a beautiful and deep soundtrack to accompany a modern classic. The last 40 seconds or so are simply amazing.
Also in need of a mention;
Lord of the Rings, Indiana Jones, Up, Toy Story and Star Wars. In fact, Indiana Jones deserves more than just a mention.
The first bit of this just screams the adventure-theme of the movies;http://www.youtube.com/watch?v=UjqQ0_cbRbc
Continue watching for the best RCT3 ride I've ever seen, too.