These are 11 of the world's most unusual buildings

Aerial view of Dubai Frame

When it comes to designing structures, some architects let their creative juices flow further than others.

Why build a regular skyscraper when you can craft one in the shape of a picture frame?

And surely the world needs an art gallery that looks like a giant alien just fell to Earth?

For 11 of the world's most unusual and wonderful buildings, take a look at the video above.

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