Mosteiro de Santa Maria de Seiça, Portugal
Green plants creeping into the structure of this abandoned church seem to make it even more beautiful. The monastery dates all the way back to the 1100s and in 2018 it was named a national monument, so its remains will never be touched. You'll also want to see these beautifully haunting pictures of ghost towns along Route 66.
This ghost town in China was meant to be an exact replica of the bustling city of Paris and can hold up to 10,000 residents, but today it sits mostly empty.
Kowloon Walled City, Hong Kong
Kowloon Walled City was once home to 33,000 immigrants and wanderers. Before the Chinese government demolished the city, it was the center of crimes, drugs, and basically no laws. Some parts still remain today.
25 Chilling Photos of Abandoned Places Around the World, Source:https://www.rd.com/culture/photos-of-abandoned-places-around-the-world/