Room 300, DO & CO Hotel, 12 Stephansplatz, Vienna; 43-1-24-188; doco.com. There are 43 rooms; doubles range from $272 to $455. Room 300, a suite, is $1,624.

St. Stephen's cathedral is just a stone's throw from your floor-to-ceiling windows, and yet nearly nine centuries separate it from the newborn DO & CO Hotel. Welcome to Vienna, where the old is always smack up against the new. This twelfth-century church at the end of the Kärntnerstrasse—a pedestrian stretch of shops selling everything from sandwiches to shoes—marks the very heart of the imperial city. Speaking of shoes, you'll want a stylish but sturdy pair because this is a walking city. You're within strolling distance of the opera house, the vast Kunsthistorisches Museum, the increasingly lively banks of the Danube, and the busy outdoor Naschmarkt, with its dozens of cafés and shops. Do give your feet a rest at least one evening, though, by ascending to the formal restaurant atop your hotel, where you'll find an even better view of that heavenly roof.