Kearney, an 18-year-old aspiring architect, persuaded his father to travel with him from Britain to Detroit to participate in one of the city’s few burgeoning industries: tours of abandoned factories, churches and schools.

Led by tour guide Jesse Welter, they crawled on their hands and knees to peek inside a train station closed long ago; they squeezed through a gap in a fence to climb the stairs of what was once a luxury high-rise; they ducked under crumbling doorways to see a forgotten ballroom where the Who held its first U.S. concert.

“In Detroit, you can relate, you can see traces of what’s happened, you can really feel the history of a city,” Kearney said. “In Europe, when things become derelict, they’ll demolish them.”…

Photographers have flocked to the city to capture the decline; two French photographers even produced a book, “The Ruins of Detroit.” But since the city declared bankruptcy in July, hotels say they’ve seen an uptick in visitors inquiring about the ruins. So have restaurants in the up-and-coming district of Corktown, near the abandoned train station.