The largest chunk of Vegas superdevelopment CityCenter officially opens its doors today [2]--the largest, privately funded project in U.S. history. It's truly like nothing else we've ever seen. So in the winner-takes-all spirit of Vegas, we thought we'd crunch the numbers when it came to this green behemoth in the desert.

Acres: 67

Square feet: 18 million

Square feet of glass: 2.7 million

Cubic yards of concrete: 1 million

Tons of structural steel: 78,000

Years from concept to completion: 5

Employees: 12,000

Jobs created since 2005: 175,000

Cost $8.5 billion

Share sold to DubaiWorld in 2007: $2.47 billion

Amount spent on artwork: $40 million

Hotels: 4

Hotel rooms: 6,291

LEED Gold certifications: 6

Gaming floors: 1

Floors you must ascend just to reach the lobby of the Mandarin Oriental: 23

Sharp edges of Daniel Libeskind's Crystals on which you could poke your eye out: At least 10

Columns of ice slowly melting into a pool of water: 12

Custom environmental scents detected by a reporter: 2

Pounds of reclaimed silver in Maya Lin's Silver River sculpture: 3,700

Number of ballrooms named after Vdara architect Rafael Viñoly: 4

PeopleMover stops: 3

Canoes, kayaks and rowboats lashed together in Nancy Rubin's Big Edge: About 200

Mondrian-inspired Paul Smith stores: 1

Bottles of wine encased in glass walls in the Jean-Georges restaurant: A little under 1,000

Gelaterias designed by Karim Rashid: 1

Superheroes trampolining to Elvis songs in the Cirque du Soleil show Viva Elvis!: 7

Aria dollars given to  guests to test facilities on the pre-opening "Play Date": Millions

Read More: CityCenter's Architect "Dream Team" Builds the Next Vegas [2]