Originally built during World War II to protect the River Thames, these forts are now lifeless. Except for those that have been claimed by Sealand, a micronation off the shore of England.
Overgrown section of the Great Wall – China
The Great Wall is 13,170 miles long and vast sections receive little maintenance because of the enormous cost of caring for such a monumental structure.
Michigan Central Station – Detroit, Michigan
Built through 1912 and 1913, Central Station served as the passenger rail depot for Detroit and was the tallest train station in the world. With the closure of the line in 1988, Central Station fell into disuse and all restoration plans have failed.