There’s a new observation deck in town — and it’s not for the faint of heart.

The 100th-floor observatory at the top of 30 Hudson Yards boasts a 7,500-square-foot triangular outdoor terrace that will be open to visitors in March. Dubbed the Edge because it juts out 80 feet from the top edge of the tower and is surrounded by glass walls — this place is sure to become a selfie hotspot.

On a clear day, you can see 80 miles out and across every borough, to the Long Island Sound into Connecticut, down New York harbor to the Statue of Liberty and New Jersey, and up the Hudson River past the George Washington Bridge northwards into the foothills of the Catskill Mountains.

The tremendous terrace and stairs are completely bounded by the glass enclosure allowing for the almost uninterrupted views and blocking the stronger winds that would otherwise make you grab for your hat.

Head to the southeast corner of the deck, and you’ll feel like you’re on the prow of a ship, with the tall and short buildings creating the waves below. Lean into the 9-foot-high clear glass barricade slanted 6.6 degrees outward to safely check out the street and rooftops below.

Most impressive however, is the unique, 225-square-foot glass triangle in the floor where only the bravest guests will stand, sit or lie down — likely to click some selfies — with the actual street 1,131 feet below.

There’s also a grand outdoor staircase where visitors can sit and take in the sunshine and grab a bird’s eye view of the Empire State Building’s own observatories.

Debuting in March, tickets go on sale Thursday, Oct. 24. Online adult tickets are $36, $31 for a child and $34 for a senior or New York City resident with higher charges on site but other discounts available for veterans and groups.

The stairs will bring visitors to the Peak eatery on the floor above, operated by rhubarb for lunch and dinner. Although others will review the food once it opens, those who miss Windows on the World at the old WTC will rejoice in the upcoming restaurant.

Anyone eating or attending an event on the 101st floor will also be able to skip the observatory fee and stroll around from 8 a.m. until the deck closes, expected to be at midnight. Champagne, cocktails and small bites are also available on the 100th floor so you can bring your flute outside and toast the town.

Exhibits and elevator experiences, a souvenir shop and other surprises will be revealed next year.