The phrase "an astounding sight" is correct and usable in written English.
You can use it to describe something that is remarkably impressive or surprising to see.
Example: "The view from the mountaintop was an astounding sight, leaving everyone in awe of nature's beauty."
Alternatives: "a breathtaking view" or "an incredible spectacle".
As much drawing as painting, it is an astounding sight.
But Ruth's best records, Montville says, "weren't recorded in books, they were kept in individual memories of an astounding sight witnessed on a warm afternoon".
And the Brooklyn Army Terminal — still an astounding sight on the coastline — was the largest warehouse of its time, unloading and storing freight, and housing the Port of Embarkation command headquarters that coordinated the international movements of American soldiers.
Within each of the holes was an astounding sight — two pods of trapped beluga whales.
As much a drawing as a painting, it is an altogether astounding sight.
The Falcons called for a review, which simply gave everyone more time to consider the astounding sight from a variety of angles.
I saw astounding sights and ate previously unimaginable things.
(Luckily I carried my own needle, for just such emergencies). I saw astounding sights and ate previously unimaginable things.
Unearth some her most astounding sights for visitors to enjoy, including the Bahuaja Sonene National Park which can be found in the south eastern area of Peru.
The next day we hit some of the sights in town, stopping first at the small Museum of Sacred Art, which has an astounding collection of early Flemish altarpieces (16th-century Madeiran sugar potentates had a taste for the stuff).
After enduring the sight of Aung San Suu Kyi campaigning to adoring crowds across the country throughout the year and suffering an astounding defeat earlier this month — the N.L.D. won 43 of the 45 seats contested — they are now relishing the fact that it's the N.L.D. that's keeping itself out of Parliament.
