The Garrison Church in Potsdam, Germany, is a tourist attraction that embodies the age-old metaphor, “Don’t judge a book by its cover.” Amid all the glittering palaces, lush parks, and magnificent historical architecture that draw tourists to Potsdam each year, the rebuilt Garrison Church is easily passed by. Don't. The views from the top are amazing. And the exhibition "Faith, Power and Military" is powerful.