Big Onion Walking Tours
Big Onion Walking Tours is the largest walking tour company in New York City. It is operated by graduate students with advanced degrees in American history or related fields. The company has offered sidewalk tours of the city since 1991. According to a recent review, Big Onion is the "grandaddy" of New York's walking tour companies.
Big Onion was founded by Columbia University graduate students Seth Kamil and Ed O'Donnell in 1991. They were initially encouraged by Kenneth T. Jackson, a Columbia professor and prominent historian of New York City. For decades Jackson has required his students at Columbia to explore the city on foot and even to write walking tours as academic assignments. Kamil and O'Donnell initially gave walking tours on ad hoc basis for museums and school groups as a way to help to pay for graduate school. What started as an informal enterprise gradually developed into a small company as they began giving public "show-up" tours that were listed in the newspaper. Soon thereafter, they hired colleagues at Columbia, New York University, and CUNY to help lead tours.
In 2001, Jackson wrote in the preface to the first published collection of Big Onion tours:
"New York is fundamentally a walking city, so what better way is there to see it? The reason Big Onion Walking Tours has succeeded is that it makes the city's history accessible and understandable--not to mention entertaining. This is no small feat given New Yorkers' unforgiving nature and the difficulty of running any business here, let alone one founded by graduate students. Big Onion began with only three tours--Immigrant New York, the Jewish Lower East Side, and Ellis Island. Today there are almost thirty, all of which peel back the layers, like an onion, to reveal what's beneath."
After 9-11, Big Onion had a marked decrease in patrons, while maintaining its public tour roster, no groups chose to take tours from September 12 through October 29, 2001:
It was a tour that Big Onion Walking Tours usually conducts dozens of times each fall, all over the city, for school groups from all over the country. But it was the first one that Big Onion had done since Sept. 11. In the aftermath of the terrorist attack, the economic woes of New York businesses that feed, entertain, house and generally cater to visitors have been well documented. But the ripple effect has also spread to the tour guides who depend heavily on traffic from out-of-town schools.—David W. Chen, New York Times 
They have since recovered, as has other tourism in New York City.
As of 2009, Seth Kamil continues to serve as president, and Big Onion employs more than two dozen veteran guides from universities all over the region (many "retired" guides have moved on to successful academic careers). Each year Big Onion offers hundreds of show-up tours to the public and hundreds more to schools, businesses, law firms, non-profits, and families. It is a programming partner of the New-York Historical Society.
Big Onion provides primarily historical and literary walking tours, to show the sites not shown on "plaques". They also focus on neighborhoods, such as the Lower East Side, often missed by other operators.
Big Onion gives tours in two dozen neighborhoods and parks in Manhattan and Brooklyn 365 days a year, rain or shine. Tours meet at or near a subway stop and are typically two hours long. Since each guide is encouraged to bring her own perspective and expertise to her tour, no two tours are alike. Guides often incorporate their academic specialities into their tours and provide listeners with historical context as well as running commentary on architecture, immigration, urban development and historic figures. Several tours concentrate on the history of specific ethnic groups and neighborhoods.
Two collections of Big Onion tours have been published by NYU Press. The first is The Big Onion Guide to New York City, published in 2002, and the second is the Big Onion Guide to Brooklyn, published in 2005.
- , March 2006 Travel + Leisure website
- "Big Onion Walking Tours, founded by two Columbia University graduate students," in John Brannon Albright, "Travel: Q and A," New York Times, May 16, 1993, found at Travel section of the New York Times Archives article of 5-16-93. Accessed April 6, 2009.
- David K. Randall, "These Tour Guides Know the History Not Found on Plaques," New York Times, June 23, 2007, corrected as of July 6, 2007, found at Travel section of the New York Times Archives article of 6-23-07 as amended 7-6-07. Accessed April 6, 2009.
- Kenneth T. Jackson, Foreword to Seth Kamil and Eric Wakin, The Big Onion Guide to New York City, New York: NYU Press, 2001, viii-ix
- David W. Chen, "City Is Still Standing, but the Tours Aren't Walking Much," New York Times, October 31, 2001, found at New York Times Archives article of 10-31-01. Accessed April 6, 2009
- Glenn Collins, "Walking for Themes, Not Exercise; Tours Reveal the City Through a Variety of Prisms," The New York Times, September 7, 1998, found at New York Times archives article of 9-7-98. Accessed April 6, 2009.
- "Exploring a Slice of Manhattan's Melting Pot: The Lower East Side Provides a Rich Glimpse of the Immigrant Experience," Pittsburgh Post-Gazette, April 30, 1995, found at Newsbank archives. Accessed April 6, 2009.
- The Big Onion Guide to New York City on Amazon
- the Big Onion Guide to Brooklyn on Amazon,