I Love Coasters...the anticipation, the climb, the hills, the curves. My favorite amusement park is Cedar Point--there are more coasters there than any other place in the world, probably the universe! [Now that the aliens have visited there, it's hard telling what they've built back in the alpha quandrant!!]
The Mantis is their newest, a stand-up coaster.

The other amusement park in Ohio, King's Island also has a new coaster called The Outer Limits: Flight of Fear. It's the first indoor roller coaster of its kind on Earth. They claim to blast you to speeds of 53 mph in just four seconds.

If you're a coaster enthusiast, you might want to check out World of Coasters. There's also this page of coaster links.