This one-stop shop for entertainment needs dates back to 1916 and features the Chicago Children's Museum, a Ferris wheel and other rides, a 440- seat IMAX theater, daily performances on numerous stages, and a fireworks show (two nights a week during the summer).

DALLAS/FORT WORTH
Your Guess Is as Good as Ours
Visitors annually: Good question
Maybe it's Sundance Square, which 10 million visit. It could be Six Flags over Texas - but they wouldn't tell us their numbers, no matter how nicely we asked. Is it the Dallas Zoo? We don't know, because they wouldn't talk either. There's a lot to see and do in the DFW area, but when it comes to revealing tourist stats, this place is as tight-lipped as a two-year-old staring at a plate of spinach.

HAWAII
USS Arizona Memorial at Pearl Harbor
(808) 422-0561, www.nps.gov/usar
Visitors annually: 1.6 million
This memorial pays tribute to the 1,177 crew members who lost their lives on the "date which will live in infamy." Approximately two quarts of oil still leak from the ship each day, and the droplets are known as black tears.

LOS ANGELES
Disneyland
(714) 781-4565, www.disneyland.com