4 Fontainebleau Resort Las Vegas, Nevada
The newest building on this list, Fontainebleau Resort in Las Vegas, broke ground in 2007. The design was for a 220-meter-tall (725 ft) skyscraper consisting of a hotel and resort.
Once completed, it would have been the tallest building in Las Vegas and would have increased revenue even more for the Sin City. Then the recession hit.
Banks that had originally pledged upward of $800 million in loans to complete the building backed out, leading to lawsuits between those banks and Fontainebleau. This led to Fontainebleau (which already operates a location in Miami, Florida) filing for Chapter 11 bankruptcy in 2009. The project never recovered.
The 68-story building sits unfinished on the Las Vegas strip. Since construction was halted, there have been talks of new projects and even sales of the property to new groups. In April 2017, it was announced that the high-rise was approved for the installation of a new exterior. However, the future plans for the building are unclear.