Mario Kart Courses.

[Bowser]

Mario Kart is fun, which course (in any edition) is your favorite? Mine is either Bowser's Castle (GCN), or Airship Fortress (DS).

[Craig]

The Yoshi shaped one on Double Dash.

[Rye]

I really like Wario Stadium and Rainbow Road. :D

[RSL]

Ghost Valley 1 in the original Super Mario Kart. I was the master at that one back in the day.

[Elite Lord Sigma]

The Yoshi shaped one on Double Dash.

That'd be the Yoshi Circuit.

As for me, I like Bowser's Castle, Rainbow Road, Waluigi Pinball, and Banshee Boardwalk.

[NM]

Ghost Vally 1 & Mario Curcuit 2 from the SNES.

[Giga Guess]

Rainbow Road N64....simply stunning.

[Zante]

Rainbow road on the GBA version. I like it how you can jump across half of the map with a good timing.

[Cz]

The original Rainbow Road, Banshee Boardwalk from MK64, and Bowser's Castle from the new DS version.

[Crossblades]

Wario Stadium(N64)

Waluigi Stadium, Baby Park(GC)

Ribbon Road(GBA)

[Shaun]

Baby Park! Heheh!

Edit: What the crap!? I didn't know this topic was this old! Sorry. Lock.

[Roto13]

Airship Fortress (DS).