Munich's Blutenburg Castle has a long, rich history, but today's iteration is definitely worth a visit. It houses the International Youth Museum, possesses a masterpiece of a gothic chapel, and is a wonderful place to catch some rays or grab a cake and coffee.
The headquarters of the Munich Reinsurance Company in Germany resides in this imposing piece of architecture built just for their own purposes. Designed by architects Oswald Eduard Bieber and Wilhelm Hollweck; built in 1912/13, it's located across the street from the Munich Riding School on the edge of the English Garden.
The last site of Munich in our favorite guidebook: 111 Things in Munich You Shouldn't Miss. It's the Marienklause, a forest-dark chapel on the banks of the Isar built after a dangerous flood by the grateful watchman who survived it. Includes photos of the Isar on a summer's day plus the footbridge and raft route over the river.