1) Forbidden 2) Taboo 3) Travel Channel show 
[anthology] Off Limits (1997, ISBN 978-0-441-00436-2) is a science fiction anthology edited by Ellen Datlow. It was published in 1997 by Ace Books. It includes four previously published stories and 14 new ones. ==Contents== partial listing: ...
[adj] - barred to a designated group
out-of-bounds(p) adjective barred to a designated group; `that area is off-limits`