The Venetian and The Palazzo casino resort complex in Las Vegas is bigger than many towns. With more than 7,000 rooms, each of which is a suite, the two hotels regularly host close to 12,000 guests and that doesn't include visitors coming to gamble, shop, eat and simply see the spectacle. The Venetian alone gets 50,000 visitors a day. That's a lot of foot traffic.

"The scale of the resort quite honestly is a small city," says chief engineer of facilities James Gonsalves, who describes the "underground metropolis" where staff works. "It's basically a little city that supports this entity that guests see from outside; it's actually quite amazing."

For general manager Travis Lunn, housekeeping is the "lion's share of my responsibility." Lunn manages 2,500 employees, 1,500 of whom make up the housekeeping team alone.

The largest department at the hotel changes and launders thousands of sheets a day. Transporting all that laundry is time consuming, so the Palazzo installed a laundry chute 50-stories high, which enables housekeepers to send laundry down from the top floor to the bottom, with bundles reaching high speeds down the chute.

Unlike the situation in smaller hotels and inns, Lunn says that for him, "to try to personally touch or check on every single of the 7,000 suites obviously is very challenging." So he relies on his staff. "One of the key things in running a resort of this size is communication," he says, "really making sure one department is speaking to the next."

The rooms themselves are also on a grand scale. At 650 square feet, the smallest rooms in the hotels are suites larger than many apartments. The largest suites, at 10,000 square feet, would qualify as mansion-size in most suburbs. The generous square footage of the Venetian's standard suites warranted an entry in the Guinness Book of World Records for "Largest Standard Hotel Room in the World."

The Venetian and Palazzo complex, which is the largest LEED-certified complex in the world, has a high-tech system that keeps rooms in energy-conservation mode until someone has checked in. A computerized signal is then sent from the front desk, enabling the guest to control the thermostat.

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