Reason #9.

And last but definitely not least - reason #9 why Adelaide rocks like a mofo.

It has the world's first fully reversible one-way freeway/expressway.

Yes you read right... a reversible... ONE-WAY freeway.
I shit you not.

You can read about it (and see pictures!) here

How does it work I hear you ask?

Like this:

Northbound: (Mon-Fri: 2:30am-1:30pm, Sat-Sun-Public Holidays: 2:30pm-1:30am),
Southbound: (Mon-Fri: 2:30pm-1:30am, Sat-Sun-Public Holidays: 2:30am-1:30pm).
No traffic enters: 1:30pm-2:30pm and 1:30am-2:30am each day.

We took it, in both directions, at different times of the day...it was very exciting.

Why is it one-way you ask? Well, the short answer is that it cost too much to make it go in two directions...but the monkeys didn't design it so it could be extended to two directions at a later date either.

Adelaide rocks :-)