Skyscrapers in Reverse

Due to the incredibly tight confines in the world's most populous city, Tokyo, engineers have come up with an extremely novel way of taking down a famous landmark hotel - from the bottom up.

The process is said to be both safer and cleaner than typical demolition processes involving wrecking balls and explosives.

Over the weeks, the building has been shrinking, much to the surprise of nearby residents.  



The BBC has an interesting page about skyscraper demolition, here, that's worth a read.