Sarah Michelle Gellar

"It’s most intriguing when something is left to the imagination," says Gellar, whose next film, Addicted, is a haunting love story. "Everyone’s imagination is different; everyone’s mind goes wherever it wants to go. Sexy is what you make of it. A library is sexy if you’re in the right frame of mind."

How Revealing

"The Park Hyatt Tokyo hotel has the sexiest bathrooms in the world. They have floor-to-ceiling windows, and the bathtubs are right in the windows. The rooms are 40 to 50 floors up, so you can sit in the tub in the dark and see the whole city. It has this Blade Runner feel, like anything can be going on, and you can be part of it."

Betsey Johnson bikini top. Jeans: Gellar’s own.