Image by Trisha Ping Lonely Planet
Renowned architect Albert Kahn designed this 3.5-million-sq-ft factory, which opened in 1905, but after years of neglect it became one of Detroit's most iconic ruins. Now, an Italian developer has plans to turn it into an office and entertainment complex over the next decade. Phase one of the project is expected to be finished in fall 2019; in the meantime, you can tour the site on Saturdays with Pure Detroit. Book far in advance online.