I have an ongoing project to make posts for mental_floss articles I wrote way back when that I do not have an archive for. Here's another one, from 2007.
When the Eiffel Tower was first built, it was the tallest building in the world. At 986 feet, it was almost twice as tall as the previous tallest building, the Washington Monument. It wasn't until 1930 that the Chrysler Building in New York surpassed the Eiffel Tower in height. Read about how the Eiffel Tower came about in an article I wrote for mental_floss.