Open House New York

The third annual Open House New York is taking place Saturday, October 8, and Sunday, October 9.

As part of the city’s Architecture Week, OHNY Weekend opens the doors to some of New York’s most celebrated achievements in architecture and design by providing free public access to 150 exceptional sites, many normally closed to the public, as well as tours, talks, walks, performances and family programs.

For those who don't know, the annual event opens normally inaccessible private buildings to the public for the weekend. It's free of charge, and one of the best opportunities all year long to get a weekend-long architecture fix. Highly recommended.