StadtparkJust off the Ringstrasse, the Stadtpark gives visitors to Vienna a chance to marvel at the genius of Otto Wagner: The architect's art nouveau U-Bahn metro station is a landmark there. With the little Wienfluss (Vienna River) running through it, the 28-acre, English-style, manicured Stadtpark was laid out in the middle 19th century and is perhaps the finest city park in this greenest of cities. For maintaining the historic fountains, ornamental plants, and decorative trees along its winding paths, the botanical specialists and gardening team deserve a tip of the hat. Fine statues of composers Franz Schubert and Anton Bruckner, as well as a gilded-bronze likeness of a violin-playing Johann Strauss II—who performed here—are famous. The café in the Italianate Kursalon Hübner concert hall is a good place for a break from sightseeing.