What is the most populous US state?
California is the most populous US state, with about 39 million people.
Reference: Willis Tower
California is the most populous US state, with about 39 million people.
A railroad tanker car carrying propane traveled over 3,000 feet when it exploded during a train wreck in Illinois, sheering off a steel tower in it's path. It's the longest flight on record for a propane explosion.
The Home Insurance Building in Chicago, completed in 1885, is often called the world's first skyscraper.