Museum Wiesbaden
This impressive city museum offers a heady mix of natural history and fine art. The permanent Aesthetics of Nature exhibition is spread across the two floors and divided into four fascinating themes: Color, Form, Movement, and Time. Expect to learn about the functional white fur of polar bears, the swimming legs of crabs, the fossils left behind from when this region was a large sea, and much more. The art collection is spread across all three floors and includes everything from the figurative paintings of Dutch Old Masters to the abstract sculptures of European and American modernism. Look out for the bright, expressionist paintings of Russian artist Alexej Jawlensky, who lived in Wiesbaden for the last 20 years of his life, and don't miss the Jugenstil exhibit, featuring more than 500 magnificent Art Nouveau paintings, furnishings, and ornaments. Temporary exhibitions focus on art and culture from around the world. Don't miss the spectacular, gold-colored mosaics on the interior of the cupola, just to the left as you enter the museum.