Cobo says a rock concert can easily exceed 100 decibels and that earplugs, depending on their quality and how well they are placed in the ear, probably could reduce the sound by 20 decibels or more.

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But its location within the atmospheric old part of the city gives it a special vibrancy (if sometimes a little too much: The building closest to the fort has strong barnyard aromas from a neighbor's livestock, and the calls to prayer at the mosque next door are the reason earplugs are left on your side table at night).

FORBES: Photograph: Andre Fanthome (RAAS)

The ancient oaks that line the course still drop acorns on the carefully tended tarmac, while up on the decks of the Paddock Club, men and women in Armani clink Champagne glasses while wearing earplugs against the engines' high-pitched buzz and the constant roar of the tifosi.

FORBES: Just the ticket.