marvels

A marvel is an amazing or extraordinary thing that inspires wonder.

When someone says "This new skyscraper is a marvel of engineering", they mean it's incredibly impressive and awe-inspiring. The word can also describe something old, like an ancient monument or a famous work of art, if it's considered remarkable for its time or in general. For example, "The painting was a marvel of its era" means it showed incredible skill and style at the time it was created.