It's about twelve times as heavy as The Great Pyramid of Giza.
In other words, the weight of The Great Pyramid of Giza is 0.083 times 73 megatonnes.(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt)
The Great Pyramid of Giza has an estimated mass of 5.90 megatonnes. The 2,300,000 stones used in the construction of the pyramid weighed an average 0.00000230 megatonnes and were quarried from distances of up to 805 km (500 mi) away.
It's about 90 times as heavy as The Golden Gate Bridge.
In other words, 73 megatonnes is 90.70 times the weight of The Golden Gate Bridge, and the weight of The Golden Gate Bridge is 0.011 times that amount.(San Francisco, California and Marin County, California) (Post 1986 weight reduction; total weight of bridge, anchorage, and approaches)
Following the completion of the 1986 project to eliminate excess material, the total weight of the Golden Gate Bridge — including its anchorages and approaches — is 0.8050 megatonnes. The two main cables in the spanning the bridge are spun out of a total of 129,000 km (80,200 mi) of wire.
It's about 200 times as heavy as The Empire State Building.
In other words, 73 megatonnes is 221 times the weight of The Empire State Building, and the weight of The Empire State Building is 0.00452 times that amount.(New York City, New York)
The Empire State Building weighs approximately 0.3310 megatonnes. About 4% of the building's weight is its 6,000 cu. m (200,000 cu. ft) of limestone façade.
It's about 350 times as heavy as The Sears Tower.
In other words, 73 megatonnes is 361.70 times the weight of The Sears Tower, and the weight of The Sears Tower is 0.002765 times that amount.(officially "Willis Tower" as of 2009) (Chicago, Illinois)
The Willis Tower weighs approximately 0.20180 megatonnes. The outer wall surface of the Tower is covered with black anodized aluminum panels which would total 110,000 sq. m (28 acres) if laid out together.
It's about 600 times as heavy as The CN Tower.
In other words, 73 megatonnes is 619.120 times the weight of The CN Tower, and the weight of The CN Tower is 0.0016152 times that amount.(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada)
The CN Tower weighs approximately 0.117910 megatonnes. The Tower is home to the world's highest glass floor — a viewing area that allows visitors to look straight down 342 m (1,120 ft) to the ground below.
It's about 3,000 times as heavy as The Statue of Liberty.
In other words, the weight of The Statue of Liberty is 0.00033 times 73 megatonnes.(a.k.a. Liberty Enlightening the World, a.k.a. La Liberté éclairant le monde) (total weight, including foundation)
The total weight of the Statue of Liberty is roughly 0.024 megatonnes. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about 5,500 times as heavy as The Brooklyn Bridge.
In other words, 73 megatonnes is 5,480 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 0.0001825 times that amount.(a.k.a. New York and Brooklyn Bridge) (Manhattan and Brooklyn, New York City, New York) (total weight)
The total weight of the Brooklyn Bridge is approximately 0.01332 megatonnes. In a promotional event to prove the bridge's stability shortly after it opened, entertainer P. T. Barnum led a parade of 21 elephants across it in May of 1884.