Sienna Miller is in Ibiza, Spain today, and I never knew that place was such a hotspot until everyone in Hollywood started going there. If you don't know, it's actually an island about 30 miles off the eastern shore of Spain in the Mediterranean Sea. Their history dates all the way back to 650 BC, when Phoenician settlers founded a port there and used it's natural resources to produce dye, salt, and wool.
If you'd like to learn more about Ibiza, you're a nerd and should probably go to some other site. Sienna Miller is a bikini for gods sake. Maybe you can find a website that has sexy pictures of books since you love em so much, dork.
SEXY UPDATE - now with 500 percent more bikini madness