Vienna ? Talk about a caffeine high.

Coffee enthusiasts will be able to get a cup — and a slice of cake — in a makeshift cafe being set up inside a tower of Vienna’s stately St. Stephen’s Cathedral.

Organizers say the cafe will offer sweeping views of the Austrian capital from its perch in the tower, which is 236 feet high.

The lofty cafe won’t be permanent. Vienna’s Coffeehouse Association said Tuesday it’s a one-day deal to help mark the city’s annual Coffee Day on Oct. 1.