Major American cities such as New York and San Francisco face serious problems — mass migration, empty offices and declining tax revenues. These trends have had a direct impact on cities, which rely on tax revenues for funding, a significant portion from commercial real estate. Stijn Van Nieuwerburgh has defined this cycle of spillover effects as the 'urban doom loop.' Watch the video above to learn more about the so-called 'urban doom loop' threatening American cities, and what local governments can do to avoid falling further into fiscal trouble.

Leading up to his retirement, a New York craftsman trains his young protégé, in a short documentary by Ian Moubayed.

Tom Delgado takes you around the Gramercy Park neighborhood, talking about Samuel Ruggles, the private park, the Player's Club, National Arts Club, Washington Irving, and NYC history. Shot by Phil Rizdon.