Trip Advisor question: I heard there is a large two lane tunnel deep under the [Vegas] strip that only the rich and powerful and certain suite guests are allowed to use? A guy named Eddie told me about it.

First reply: i think its behind the secret pizza place at Cosmo

There are other replies mentioning the airport and the Desert Inn, but that reply about the SECRET pizza place sent chills up my spine.

https://www.tripadvisor.com/ShowTopic-g45963-i10-k5473024-Where_is_entrance_to_secret_tunnel_under_strip-Las_Vegas_Nevada.html, http://archive.is/TCsiU#selection-1969.0-1969.50