?Vienna, Austria

Sacher torte—an airy chocolate cake layered with apricot jam and served with a spoonful of whipped cream on the side—has been on the menu at Hotel Sacher Wien since the Sacher family opened the hotel on Philharmonikerstrasse in 1876. Nearly a century and a half later, the decadent confection and its historic home remain two of Vienna’s greatest indulgences. The 149-room hotel is a beguiling spectacle of fin-de-siècle artistry, with its brocade wall coverings, silk curtains, glittering Lobme…