The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From The Field Museum:
Get more out of every visit to The Field Museum in Chicago. The Field Museum app is loaded with exclusive content, experiences and curated tours everything you need to get a deeper understanding of the objects in our collection. Through video and sound, our scientists will give you a greater insight into featured artifacts and specimens. Share your favorites with friends or create your own tours based on interest or theme. New objects and tours will be added on a regular basis, so there will always be something new to discover. Its the best of The Field, now available on your mobile device.