the highways and byways

roads and streets that exist in a particular area

The origin of the idiom "the highways and byways" can be traced to the literal concept of traveling and exploring roads and paths. The term "highways" refers to major roads or routes, while "byways" refers to smaller, less-traveled roads or side streets. This expression is used to refer to all possible routes and avenues, emphasizing a comprehensive or thorough exploration of various paths, options, or areas.

She embarked on a journey to explore the highways and byways of Europe, visiting both well-known cities and hidden gems.
The historian delved into the archives, researching the highways and byways of the country's rich cultural heritage.
The tour guide took the group through the highways and byways of the city, showcasing its historical landmarks and local neighborhoods.
The detective tirelessly investigated the highways and byways of the case, leaving no stone unturned in search of clues.
The travel blogger shared her adventures on the highways and byways of South America, documenting her encounters with diverse cultures and breathtaking landscapes.