NOVA offers an interactive tour of the Galapagos Islands as they appear today and as Darwin saw them. The tour of the islands highlights the unique animals and geologic features on the islands. As visitors progress through the tour they can view view videos and images and listen to audio tracks about the islands. In contrast to the modern imagery of the islands, visitors can select the “What Darwin Saw” tour to view Darwin’s sketches, excerpts of his writings, and listen to experts talk about what Darwin saw.

Another resource about the Galapagos Islands that is worth thirty minutes of your time is a Link TV video about the impact of development on the Galapagos Islands. You can watch the film on Snag Films.
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Applications for Education
I’ve seen Darwin’s trip to the Galapagos Islands present in both science and history lessons. The interactive tour linked above provides a nice way for students to see how Darwin’s work influenced they way scientists work today. Of course, Darwin’s ideas did cause controversy as evidenced by the Scopes Trial in 1925. American Experience has some lesson materials for teaching about the Scopes Trial.

Here are some related items that may be of interest to you:
Galapagos Rap Video
Darwin, A Naturalist’s Journey – Virtual Tour