From Cuba's crumbling infrastructure to abandoned prisons across the U.S., photographer Liz Roll has made a hobby of exploring the ruins humanity leaves behind. While the architecture, left to the elements, is often stunning, sometimes the most interesting part of urban exploration is the bizarre and sometimes seemingly out-of-place objects found on location. 

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Roll has compiled some of her strangest finds from her travels. Forgotten dolls, headless statues and resurfacing coffins are among the mix, eerie artifacts of a mostly-unknown past. Roll's collection features junkyards, empty roadside attractions, abandoned homes and deteriorating theaters.

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Some of the items seem useless, while others create a creepy atmosphere, and still, a sadness permeates from some of the photos. A U.S. Air Force airplane boneyard in a New Jersey forest? That's just odd. But it's up to the imagination why a loved toy might be left behind.

Click through the slideshow above for some of Roll's highlights from abandoned places around the U.S.

MORE FROM WEATHER.COM: Creepy Abandoned America by Photographer Liz Roll