The Belgian venue is one of only four to survive from the inaugural Formula 1 season in 1950, and whilst the fearsome 14.1km layout is no longer used, the track still presents a unique challenge for the drivers.
"One lap of Spa is like 20 at any other track, in terms of the excitement and adrenalin it generates," Alonso said.
"It is a very special circuit that always gets your adrenalin pumping, what with the way the track rises and falls and the very quick corners, which all go to make it a really fantastic experience for a driver."
Massa has struggled so far this season and his future with Ferrari remains the subject of fevered speculation, but the Brazilian is looking forward to racing again at the legendary Spa circuit.
"Spa is fantastic, something of a dream for all drivers to race there, especially in a Formula 1 car," added team-mate Massa.
"There's so much history there and it's a wonderful challenge with all the climbs and drops and changes of direction, which all add up to make driving there a true pleasure."
The Brazilian won the 2008 Belgian GP after Lewis Hamilton was handed a time-penalty, but Alonso has never stood atop the podium at Spa-Francorchamps. The Spaniard was eliminated in the first corner crash at last year's race and is hoping for better luck on Sunday.
"I did well in 2005 when I came second and also back in Formula 3000 So far, I've never been in with a real chance of fighting for the win and I've often retired at Spa, usually for reasons of plain bad luck or with technical problems or down to my own mistakes," he said.
"So it would be great to make up for that this year, picking up all those lost points."