Shortly after turning in her pen, Any1 Gynoid sent me a brief message that the Imagine Peace Tower in Second Life was closing. I couldn't teleport to the Imagine Peace Tower sim, though some information I came across suggested it was not always open to the public.
Checking out Daniel Voyager's Blog, a couple days ago he got a Twitter message from Explorer Dastardly, whom forwarded a message apparently from Yoko Ono:
Group Notice From: IMAGINEPEACE.com, Yoko Ono
We are closing the IMAGINEPEACE.com 2L group. We can still keep in touch via Facebook, Twitter, & at IMAGINEPEACE.com love, yoko
Yoko Ono: You have been ejected from 'IMAGINEPEACE.com' by Yoko Ono.
The Imagine Peace Tower in Second Life was opened in October 9 2009, just after the yearly lighting of the one in real life it was based on. It would light up just after dusk on the sim and shut off at dawn every day.
No reason was given for the sim's closing.
Sources: Daniel Voyager's Blog, imaginepeace.com
12 hours ago