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Great news for architecture buffs! From now through September, you can now access the famously closed-off lobby of the Woolworth Building. Originally, tours were only available for special events or exhibits. (We managed to get one with the Skyscraper Museum.) But in celebration of the building’s centennial, anyone can see the lobby of the National Historic Landmark. Untapped Cities offers an exclusive tour of the building led by architect Cass Gilbert’s great granddaughter, Helen Post Curry:

VIP Tour of the Woolworth Building

Until then, check out our extensive previous coverage of the Woolworth, ranging from our behind-the-scenes tour, to vintage photos of the landmark under construction, to an analysis of its depiction in The Great Gatsby.

Get in touch with the author @YiinYangYale.