1. Hilton San Francisco Financial District
You won't have to go trick-or-treating if you stay here October 29-31. The hotel will dole out treats like restaurant coupons, free movie and candy and, our favorite non-sugary goody, free Hilton HHonors points. Arrive in your best Christine O'Donnell witch getup—or any other costume—and you can win a free stay. Rooms start at $155.
2. The Surrey Hotel, Manhattan
On the other hand, if sugary sweets are what you're after, try the Surrey. The hotel will hand out gourmet salted caramels at check-in, candy to trick-or-treaters and goodies to doggies. Moms get their own special treat: 20 percent off any 60-minute spa treatment. Rooms start at $499 on Halloween weekend.
3. Park Hyatt Washington, D.C.
Let your pet celebrate the holiday. On October 20, Fido can dress up and compete for prizes at the Park Hyatt's Halloween edition of Paws at the Park happy hour from 6 to 8pm. There's also a "best couple" category, so put on a costume. The $12 entry fee includes two beer/wine tickets, candy and doggie treats. Pet packages start at $449.
4. Circus Circus, Las Vegas
Circus Circus is a VegasChatter fave for cheapie rooms, but it's also the best hotel for a scare. It hosts Fright Dome, a dark, foggy 5-acre haunted theme park with gory roaming actors, rides and five haunted houses, including the favorite Chainsaw Massacre and the so-called scariest house, Hillbilly Hell. That does sound kinda creepy. Fright Dome runs Thursdays to Sundays through October; admission is $34.95 (or $5 off and a fast-pass upgrade if you stay two nights or more at the hotel). Rooms start at $80 Halloween weekend.
5. Ramada Plaza Hotel, Fond Du Lac, Wisconsin
The Ramada looks like a regular old hotel. But according to GhostTraveller.com, it's haunted by Walter Schroeder, who built the hotel in the 1920s. His ghost is blamed for playing tricks on guests, including turning lights and faucets on, screaming, banging noises, switching channels—apparently, he has an affinity for C-SPAN—and creating apparitions. The employees keep an unofficial log of all of the weird goings-on. The really brave can request room 717; a lot of the scary paranormal reports come from there. Halloween-weekend rooms start at $109.65.