The World's Most Interesting Unfinished Buildings

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Vote up the strange buildings you can't believe were left unfinished and would most like to poke around in.

Everyone has a little bit of an explorer in them – visiting spooky, abandoned, or unfinished buildings can be a tempting way to get that adventure fix. This list of famous buildings still under construction – some after hundreds of years of being built – includes structures you can take a tour of, ones you can wander through at your leisure, and a few that are for the more hard-core adventurers.

From majestic churches and temples to homes built to keep out spirits to national monuments and and breathtaking skyscrapers, all of these unfinished buildings have their own unique stories to tell, with quirky histories and tragic stories behind why they were never finished. Some are still under construction; some have been given up entirely. Some of them had the potential to be among the most beautiful buildings in the world had they ever been completed.