Level 48: Chicago’s Sears Tower, now the taller building in the world, rises 1,522 feet from the ground the top of its antenna.

Explain:

“In the world” means in the world, moreover, preceded by “the” should use the superlative degree.

Edit:taller=> tallness

Translate:

Chicago’s Sears Tower, now the tallest structure in the world, rises 1,552 feet from the ground to its top.