UPPER EAST SIDE, NY — Upper East Siders are accustomed to their neighborhood being spotlighted for its world-class museums or its ornate streetscapes. But what about its secrets?

The website Untapped New York aims to unveil some of the neighborhood's hidden stories in a new list published this week, titled "Top 11 Secrets of NYC's Upper East Side." (The headline is apparently a misnomer, since only 10 spots make up the list.)

Their roundup features some architectural gems, historic oddities and other locations that tend to fly under the radar. Let us know in the comments whether you have a secret spot of your own that didn't make the list.

Here's Untapped New York's list:

1. Jones's Wood may have been New York's Central Park

"In present-day Lenox Hill, Jones's Wood was a plot of farmland overlooking the East River formerly owned by the Jones and Schermerhorn families. The 132-acre property, known as the "Louvre Farm," extended from 66th Street to 75th Street. The successful innkeeper and merchant John Jones bought the property, which was divided into lots and given to his children.

"... Before concrete plans for Central Park were drawn out, many landscape architects and urban planners considered building a public park at the site of Jones's Wood... A bill was unanimously passed that would authorize the city to appropriate the land through eminent domain, but the law was later invalidated."

2. Millionaire's Row extended up to the Upper East Side

"Millionaire's Row along Fifth Avenue, consisting of dozens of Gilded Age mansions occupied by some of the wealthiest people who ever lived, was primarily concentrated around Midtown. However, a handful of Beaux-Arts mansions still remain on the Upper East Side, primarily in the East 70s.

"Henry Clay Frick's mansion at 70th and Fifth is now the Frick Collection ... the 89th Street home of sculptor Anna Hyatt Huntington previously housed the National Academy Museum and School of Fine Arts, while the Cooper-Hewitt National Museum of Design is located in one of Andrew Carnegie's homes."

3. Alexander Hamilton died in front of the Gracie Mansion ballroom fireplace

"In 1804, after being shot in a duel with Aaron Burr in Weehawken, New Jersey, Alexander Hamilton was transported to the home of the Bayard family who lived in the West Village. It was in front of the fireplace that Hamilton likely died on July 12th. But in 1966, when Gracie Mansion was redeveloped, the fireplace from the Bayard home was installed in the ballroom.

"... Gracie Mansion also became the mayor's residence as a protection mechanism against Nazi attacks. Robert Moses thought it would be safer and easier to evacuate the mayor from the mansion in case of a Nazi attack; the Nazis had attempted to infiltrate Grand Central Terminal ."

4. The Upper East Side was a major German enclave

"In the 19th century, many German immigrants began moving to Yorkville around 86th Street. Many German New Yorkers spent time in Carl Schurz Park, named after the German-born Secretary of the Interior.

"... The area was also known for its many breweries, and there was some friendly (and not so friendly) competition between the two main ones: Ehret's Hell Gate Brewery and Ruppert's. A number of German and Eastern European restaurants and shops are still open in the area today, including Heidelberg Restaurant, Schaller's Stube Sausage Bar, Cafe Sabarsky, and Bohemian Spirit Restaurant."

5. The Upper East Side contains some of the most architecturally fascinating diplomatic missions

"The Upper East Side houses over 20 diplomatic missions, many of which are located in former mansions. The Consulate-General of Greece in New York, for instance, is in the former 79th Street residence of George L. Rives, who served as U.S. Assistant Secretary of State.

"... Additionally, there are about a dozen missions to the UN located in historic homes within historic districts, including the Upper East Side Historic District and the Carnegie Hill Historic District. Countries include Belarus, Mongolia, Ivory Coast, Mali, and Iraq."

6. The Municipal Asphalt Plant was despised by Robert Moses

"The Municipal Asphalt Plant, built between 1941 and 1944, was an old asphalt plant that became a pool and fitness center in 1984. The plant was designed by Robert Allen Jacobs and Ely Jacques Kahn, who designed many New York skyscrapers and collaborated with Ayn Rand ... Asphalt Green, the fitness center, was created four decades later following major structural changes to the interior."

"The post-modernist building, though, was hated by Robert Moses, who called it the 'Cathedral of Asphalt.'"

7. The Knickerbocker Greys is the oldest after school activity in the country

"The Knickerbocker Greys is a youth cadet corps on the Upper East Side and the oldest after school activity in the U.S. ... The Knickerbocker Greys meet at the armory on Park Avenue, although the corps previously met at locations downtown. The Greys first accepted girls in 1986, decades after figures such as Nelson Rockefeller, Cornelius Vanderbilt III, and John Lindsay attended."

8. The Barbizon Hotel for Women required three letters of recommendation to live there

"Located at 140 East 63rd Street, the Barbizon Hotel was built in 1927 as a "Club Residence for Professional Women." The hotel is a blend of Late Gothic Revival and Italian Renaissance architecture with some Islamic elements. The hotel's reputation skyrocketed in the 1940s as the premier hotel for young single women. It was required that a woman have three letters of recommendation and impeccable manners to be allowed to rent a room at the hotel. And it wasn't until 1981 that male guests were allowed in."

9. Henderson Place is just one block long

"Henderson Place, located on 87th Street between East End Avenue and York Avenue, is a one-block-long Historic District. Henderson Place is a private road blocked off to traffic known for its Queen Anne-style homes that were once part of a larger development of 32 houses. The district was developed by John C. Henderson, who gained wealth from making fur hats. Henderson bought a parcel of land that had previously belonged to John Jacob Astor, and the land skyrocketed in value as a result of local construction of the New York and Harlem Railroad Company lines."

10. The Society of Illustrators contributed to both World Wars

"Founded on February 1st, 1901, the Society of Illustrators was founded 'to promote generally the art of illustration and to hold exhibitions from time to time.' ... Members of the Society worked with the Committee on Public Information's Division of Pictorial Publicity, and eight members were sent to France to photograph World War I. The Society also created dozens of posters to boost morale during World War II.

"... The Society, located on East 63th Street, acts as a gathering place for industry folks and fans, celebrating contemporary illustration through gallery and award shows."

Read the full list, including the full blurbs for each secret spot, at Untappedcities.com.