TT Course
The Isle of Man is a weird little island between England and Ireland, with its own ancient Parliament, legal system and (very favorable) tax regime. Up until the recent credit crunch, it was mostly populated by bankers and motorcycle racers -now there are just racers.
The TT (Tourist Trophy) races were first held on the Island in 1907, and in 2009 the races are still held on a closed street route. That circuit takes in narrow village alleys, super-fast, bumpy back roads and a simply awesome "mountain" section that rises up to 1,400 feet at Brandywell. The Isle of Man doesn't have a maximum speed limit out of town, so if you visit, you can ride the "mountain" course without worrying about the cops. And if you visit during the TT itself you can enjoy the pleasures of "Mad Sunday," when the mountain road becomes one-way. The modern TT circuit is 37.5-miles long, and has 'at least 200' corners.
Phillip Island
The island location and hilly terrain of Phillip Island means it looks as impressive as it is to ride. The 2.7-mile track has 12 turns, including the heart-stopping downhill Lukey Heights. Watching the GP gods do battle here is one of motorcycling's greatest sights.
Donington
Donington Park is one of the UK's most popular circuits. Set in the middle of England near Leicester, the 2.5-mile, 12 turn track has two striking bends: the never-ending Redgate turn one, and the incredible Craner Curves section. This mega-fast, downhill right-left is truly astounding to watch when the MotoGP machines are screaming through it.
The facilities are a bit rough, it's a pig to get to and park, and the Melbourne Loop section is considered by many to be rather Mickey Mouse. But for thousands of UK bike race fans, Donington is the heart of the sport in Britain.