Here’s the $40 million view from atop One Dalton

Visitors to One Dalton took in the view from the 61st floor.Suzanne Kreiter/Globe staff/Globe staff

Look now, because odds are this is the last time you’ll see the view from inside a penthouse at One Dalton.

The superluxe Back Bay condominium and hotel tower is getting ready to open this summer, and on Friday developer Carpenter & Co. held a media tour to show off the swanky Zuma restaurant, the Four Seasons spa, and, yes, the jaw-dropping views from the top floor.

It’s the tallest residential building in Boston, just a bit shorter than the neighboring Prudential Center office tower and 200 Clarendon (formerly the Hancock building) a few blocks away. And with floor-to-ceiling windows, curving glass walls, and roomy outdoor terraces more than 600 feet in the sky, the building makes the most of that.

“We tell people this building will likely have unobstructed views forever,” said developer Richard Friedman. “It almost certainly will.”

Sales have been strong, Friedman said. He said most of One Dalton’s 165 condos have sold, but would not disclose how many. Most of the buyers, he said, are well-heeled Boston-area residents, refuting a common criticism that One Dalton is mainly for foreign investors. Of the three penthouses on the 61st — and highest — floor, two are under contract. That means one more person can buy those views. For about $40 million.

A view of the hotel lobby. Suzanne Kreiter/Globe staff/Globe staff

The pool for hotel quests and residents at One Dalton. Suzanne Kreiter/Globe staff/Globe staff

A modern tub in one of the hotel rooms.Suzanne Kreiter/Globe staff/Globe staff

One Dalton in the Back Bay is set to open this summer.Suzanne Kreiter/Globe Staff/Globe staff