150+ sites are open to drop in during OHNY Weekend

October 7, 2026—Open House New York Weekend, the annual event where hundreds of interesting and unique sites across the city’s five boroughs are open to the public, kicks off next Friday, October 16.

If you didn’t get tickets last week, no problem. You can still attend OHNY Weekend! There are more than 150 participating venues this year that will welcome drop-in visitors, from artist studios to historical sites to secret gardens to walking tours and hidden-gem museums. See all of the drop-in sites that don’t require tickets here.

Join one of the most convivial weekends in New York, when over a thousand volunteers welcome tens of thousands of visitors to explore the city’s hidden corners. There are venues and activities for all, including families.

NYC is home to some truly eye-popping interiors that can seem like worlds unto themselves. During OHNY Weekend, some of the city’s most elaborate interior architecture is open for the public to peek inside.

• Intricate and refined, the home of the American Academy of Arts and Letters within the historic Audubon Terrace cultural center features carved wood and Gilded Age details.
• Tucked away in the Alexander Hamilton US Custom House, the Collector's Office was once home to one of the most powerful government officials in America, evidenced by the sumptuous dark wood paneling and spectacular golden ceiling.
• The cavernous sanctuary of the Fifth Avenue Presbyterian Church, which rises six stories without interior support columns, is a curvaceous wonder with no right angles.
• Decorated in vivid ruby and crimson tones by famed mosaicist Hildreth Meière at the height of the Jazz Age, the soaring Red Room at Printemps glitters like no other room in the city.
• The delightful contrast of contemporary artist Kiki Smith’s cerulean rose window glowing high above the incredibly detailed 19th century sanctuary of the Museum at Eldridge Street is a feast for the eyes.
• Staten Island’s Noble Maritime Collection, part of a complex that once housed retired sailors, features everything from painted ceilings to a full replica artist houseboat.
• One of five enormous “Wonder Theaters” built by the Loew’s company in the 1920s, the Paradise Performing Arts Center is a wonderland of architectural theatricality.
• Visitors to the Surrogate's Courthouse in Lower Manhattan are sure to feel a sense of civic pride. Amidst the marble and leaded glass, it’s hard not to muse that “they just don’t build them like this anymore.”
• Built for the General Theological Seminary, the Chelsea campus of Vanderbilt University features richly ornamented ceilings and beautiful stained glass.

There is no shortage of globally iconic architectural treasures in New York City. During OHNY Weekend, you’ll have the pleasure of peeking behind the scenes at some of the city’s most storied structures, from Midtown skyscrapers to colossal waterfront warehouses.

• Perched atop two buildings that overlook Fifth Avenue within the Rockefeller Center complex, the 610 Loft & Garden and 620 Loft & Garden are twin pockets of sylvan tranquility right in the center of the universe.
• Cass Gilbert is best known for designing the Woolworth Building, but his Brooklyn Army Terminal on the Sunset Park waterfront is surely one of the most stunning industrial buildings ever built.
• While a quarter-million people visit the Cathedral of St. John the Divine every year, the painted ceiling of the rarely opened Synod Hall will welcome guests during OHNY Weekend.
• The recently reopened Grand Army Plaza South once again serves as the gateway to Central Park, the city’s most beloved public space. Get a close look at the plaza’s restoration.
• Built on the site where George Washington was sworn in as the first President of the United States, the Federal National Hall Memorial commemorates New York City’s status as the nation’s original capital city.
• On a beautiful site overlooking the Hudson River, the General Grant National Monument pays homage to a Civil War hero and former President with a towering marble mausoleum.
• On the Friday of OHNY Weekend, the world-renowned New York Botanical Garden will host a series of tours and open houses highlighting the complex’s role as an important center of scientific research.
• Infrastructure nerds rejoice! The Port Authority of NY and NJ will host two free talks on the ongoing restoration of the George Washington Bridge.
• Brooklyn’s Prison Ship Martyrs' Monument has become a symbol of Fort Greene. Visit during OHNY Weekend for a rare peek inside this gigantic marble column.
• Sotheby's Breuer is the international auction house’s contemporary revitalization of the iconic Mid-century landmark originally built to house the Whitney Museum.
• Glowing from within like a phoenix, the Santiago Calatrava-designed St. Nicholas Greek Orthodox Church and National Shrine is one of the most stunning structures at the rebuilt World Trade Center site.
• Marking the birthplace of the LGBTQ+ civil rights movement, the Stonewall National Monument and Visitor Center is a storied gathering place in the heart of Greenwich Village.

Plus many more drop-in sites listed here, where you can sort by borough, day, accessibility, and keyword.

Since 2003, OHNY Weekend has invited New Yorkers to gain a deeper understanding of the city by opening the doors to notable spaces for visits, guided tours, and other special activities led by architects, engineers, designers, public servants, community advocates, curators, and more. More than 50,000 people, representing 80% of the city’s zip codes, attended the festival in 2025.