The phrase "an unusual map" is correct and usable in written English.
You can use it to describe a map that is not typical or expected, perhaps in terms of its design, content, or purpose.
Example: "The museum featured an unusual map that highlighted forgotten historical landmarks in the city."
Alternatives: "a unique map" or "an atypical map".
It contains an unusual mix of maps, including those that show the distribution of protected areas, coral species, coral diseases, and commercial dive centers.
MANAGUA, Nicaragua — Among the portraits of Nicaragua's most revered guerrilla hero, Augusto Sandino, in his trademark Stetson hat decorating a new exhibit in the central bank here is an unusual genealogical map linking him to another larger-than-life figure here: President Daniel Ortega.
The traditional Alsacien timber framing houses make for an unusual projection mapping canvas, but despite the uncanny encounter, the projections work quite well, slowly revealing, enlightening, and dignifying the age-old structures with the most high-tech techniques.
At the tower entrance is a good information service with interesting souvenirs, including unusual maps of the spires and nice books.
The unusual maps laid out with diagonal streets in oblique projection required extra attention from the artists.
They're so engaging because they seem to function like unusual maps, directing us emotionally far beyond any borders and into the hearts of the children.
Scientists have created the first ever weather map of an unusual category of star known as a 'brown dwarf', unveiling in the process a new contender for the title of 'worst weather in the universe'.
To determine the minimum number of strains required for reliable mapping of an unusual trait, we used the chocolate coat color as a model.
The campaign is working to expand Mr. McCain's electoral map by employing an unusual, decentralized structure in which it will dispatch 11 regional campaign managers across the country, assigning some to traditional closely fought states like Ohio and Florida, others to states they hope to pick up, like Minnesota, and a couple to some less common targets for Republicans, including New Jersey.
In another activity outlined in the same educator's guide, students design their own multimedia project inspired by "The Wilderness Downtown," a Google Chrome presentation that pairs an Arcade Fire song with Google Maps to produce an unusual music video based on where you lived when you were younger.
