Haus zum Rüden
The most ambitious of the city's many Zunfthaus dining places, this fine restaurant is also the most spectacular, with a wooden barrel-vaulted ceiling and 30-foot beams, beneath which you can enjoy such innovative entrées as home-smoked char with beetroot carpaccio, or roasted forest mushrooms with truffle cream. Slick modern improvements—including a glassed-in elevator—manage to blend intelligently with the ancient decor and old-world chandeliers. The river views are especially impressive at night; ask for a window table. The ground-floor bar also offers light lunch refreshments.