Truly Stunning Shots of Abandoned Places

The ruins of an old castle in Sintra, Portugal

There are places out there in the world which human beings abandoned long ago, leaving nature to reclaim them in their entirety. They often make for a sight that is both frightening and fascinating. They allow us to glimpse a landscape of the future — when humanity has left or ceased to be. The Instagram user itsabandoned offers many such images that help us to think about the future of our world.