Thomas Osterman

Ready to explore the wonders of Biosphere 2 at the University of Arizona? Step into a world of natural and human-made ecosystems that have been carefully crafted to simulate a microcosm of the world. From a rainforest to a simulated ocean and more, you'll be amazed by the stunning variety of climates on display. Initially built for research purposes, Biosphere 2 now offers daily tours that take you through an incredible system of trails and levels. And with the Biosphere 2 Experience app, you'll have access to never before seen photos and videos that bring the science and 30-year history to life.

Join the Oktoberfest hosted by Four Peaks & Tempe Sister Cities. This event is a tradition in Tempe that has been going strong for 50 years and is full of entertainment for all ages. Enjoy German food and beer while listening to music from rock to pop to German polka. Take part in contests, the Runnin' for the Brats 10k, 5k, and 1k race, and even check out the carnival. You will be satisfied with the variety of available food options, from the Oktoberfest German food stands to food trucks and vendors. Take advantage of this fun-filled weekend that benefits the work of Tempe Sister Cities.