"fascinating features" is correct and usable in written English.
You can use it to describe something that has particularly interesting or captivating qualities. For example, "The new computer model offers some fascinating features, including an innovative touch-screen interface."
Browsing the cybershelves is a delight, with fascinating features about books lined in fur or wood.
One of its most fascinating features is its picture of Iranian women, who, despite the restrictions of religious bigotry, often assert their independence with spirit.
One of the fascinating features of spontaneous facial expressions is how difficult it is for most people to "fake" a sincere expression.
One of the catalog's most fascinating features (sadly, not part of the exhibition itself) is a series of digital recreations of what the originals looked like.
One of the most fascinating features of GQDs, both from fundamental and application-oriented perspectives, is their fluorescence.
Materials with a specific layered structure such as film substrates and multilayer systems have many fascinating features.
In a fascinating feature, editors collected dreams Egyptians had during the revolution, sharing at least one on each spread.
A good starting point is "How 'Silent Spring' Ignited the Environmental Movement," a fascinating feature by Eliza Griswold in last Sunday's New York Times Magazine.
The most fascinating feature of Hughes's batting is that he looks like the kind of batsman fast bowlers dream about.
Even if miraculously"—putting two and three objects together should on some occasion yield six objects, this would be a fascinating feature of those objects, but it would not in the least tend to refute the purely definitional truths of arithmetic.
But it is also fascinating — featuring encounters with luminaries like William Styron and Meryl Streep and Elaine Stritch — and Mr. Guare has imbued it with the suspense and dynamism of a long, enthralling mystery story.
