(If you're cabbing it to another casino, have the doorman at the Signature hail one.)
Once you reach the MGM Grand, though, you still face a long walk past the shops, casino and lion habitat to get to the lobby and out the front door. An enclosed walkway with moving sidewalks takes guests from the towers to the casino, restaurants, shops and sites at the main hotel - about a five minute trip.
The three Signature towers are behind the larger MGM Grand complex.