The short segment that connects Yellowstone National Park with Grand Teton National Park. I think that description alone is probably enough to entice most people to want to make the drive.
Definitely take some time to walk around the mall. It's quite large, but I'd recommend heading over in the direction of the capitol, or going over to the Lincoln Memorial and Vietnam Memorial area.
Best zoo in the world. Take the zoo bus, there are two types, ride the one you can jump off and on throughout the zoo. The other just stops at a very few spots.
Had to fly into this airport when our airline went bankrupt and we were stranded in Maui. This was the only way we could get back as there were no more direct flights.
Ladies! I hope you're having a blast! Be sure to hit up North Shore and visit the little town, but also check out Sunset Beach, Ehukai Beach, and Waimea Beach. The waves should be big this time of year.