O.K here are the stats:
AN-225: MASSIVE, HUGE
Length: 275 feet, 7 in (84.0m)
Wingspan: 290 feet (88.4m)
Height: 59 feet, 5 in (18.2m)
Empty Weight: 250,5 tons
Maximum Takeoff Weight: 1,322,750 lb (600,000kg)
AN-124: HUGE, But Smaller
Length: 69.1m
Wingspan: 73m
Height: 21m
C-5a: Bigger than AN-124, But Smaller than the Mammoth
General Characteristics
Primary Function: Outsize cargo transport
Prime Contractor: Lockheed-Georgia Co.
Power Plant: Four General Electric TF-39 engines
Thrust: 43,000 pounds, each engine
Wingspan: 222.9 feet (67.89 meters)
Length: 247.1 feet (75.3 meters)
Height: 65.1 feet (19.84 meters)
Cargo Compartment: height , 13.5 feet (4.11 meters); width, 19 feet (5.79 meters); length, 143 feet, 9 in (43.8 meters)
Pallet Positions: 36
Maximum Cargo: 270,000 pounds (122,472 kilograms)
Maximum Takeoff Weight: C-5B 769,000 pounds (348,818 kilograms) (peacetime), 840,000 pounds (381,024 kilograms) (wartime)
Speed: 518 mph (.77 Mach)
Range: 6,320 nautical miles (empty)
Crew: 7 (pilot, co-pilot, two flight engineers and three loadmasters)
Unit Cost: C-5A - $152.8 million (FY98 constant dollars) C-5B - $179 million (FY98 constant dollars)
Deployed: C-5A - 1969, C-5B - 1980
Inventory: Active force and Reserve, 126
References courtesy of af.mil, and various online web pages for the AN company...