- Elizabeth, New Jersey
1963 KVLY-TV mast nominated by @Cowboy
Information: The KVLY-TV mast is a 2,063 ft (628.8 m) tall television-transmitting mast in Blanchard, Traill County, North Dakota, used by Fargo station KVLY-TV channel 11. Completed in 1963, it was the tallest structure in the world until succeeded by the Warsaw radio mast in 1974, which collapsed in 1991, again making the KVLY-TV mast the tallest structure in the world until the Burj Khalifa overtook it in 2010. It remains the fourth-tallest structure in the world (since the construction of the Tokyo Skytree and the Shanghai Tower), the tallest structure in the western hemisphere, and the tallest radio mast in the world.
Location: Blanchard, North Dakota
Architect: Hamilton Directors
Cost to Build: $500,000 in 1963 (around $3,000,000 today)