When I walked off the bridge from TI into Venetian, I suddenly had three choices:
I could walk up to the Venetian Shops, or walk down the stairs to see the Gondola Pool, or turn right
and walk the Columnade-Promenade that runs across the face of the building (mid-left in photo).
This route takes you to the Bridge of Sighs and leads into Madame Toussad 's Wax Museum
or the walkway back onto the East Strip Sidewalk (at Denny's, Outback Steakhouse
and Casino Royal) across from the Mirage Volcano.

This is one of the best places in Las Vegas for a romantic stroll (along with the Bellagio, Wynn, Mirage & Paris).