World's No. 2 tower shows off views
The Tokyo Skytree is the world's second-tallest structure.
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The Tokyo Skytree
The tower was constructed with extremely strong steel tubes surrounding a central concrete column that are structurally separate from each other in the tower's mid-section. In the event of an earthquake, the concrete core and steel frame are designed to offset each other to reduce the building's overall motion.
Credit: AP Photo/Itsuo Inouye
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