Rebuilding the temple?

The Temple Institute and other Third Temple movements have started to construct an "exact replica" of the Temple in Mizpe Yericho (a Jewish settlement near Jericho) to be used to train priests to perform the Temple sacrifices.

http://www.youtube.com/watch?v=KPrvJTGePYs&feature=related

They've also laid a foundation stone for the altar there.

http://www.templeinstitute.org/archive/30-07-09a.htm

I'll try to visit it in the next little while and report.

PS  Some people are a bit overenthusiastic about this:

http://thelastcrusade.org/2009/10/14/jews-begin-construction-of-third-temple-in-jerusalem/