More complex inflection is still found in certain lexicalized expressions like de heer des huizes (literally, the man of the house), etc. These are usually remnants of cases (in this instance, the genitive case which is still used in German, cf. Der Herr des Hauses) and other inflections no longer in general use today. In such lexicalized expressions remnants of strong and weak nouns can be found too, e.g. in het jaar des Heren (Anno Domini), where "-en" is actually the genitive ending of the weak noun. Also in this case, German retains this feature. Though the genitive is widely avoided in speech.
What word described standalone expressions that retain some outdated convention as an exception?
lexicalized

There is an extensive network of caves, including Wookey Hole, underground rivers, and gorges, including the Cheddar Gorge and Ebbor Gorge. The county has many rivers, including the Axe, Brue, Cary, Parrett, Sheppey, Tone and Yeo. These both feed and drain the flat levels and moors of mid and west Somerset. In the north of the county the River Chew flows into the Bristol Avon. The Parrett is tidal almost to Langport, where there is evidence of two Roman wharfs. At the same site during the reign of King Charles I, river tolls were levied on boats to pay for the maintenance of the bridge.
Name 2 of the county gorges 
and gorges, including the Cheddar Gorge and Ebbor Gorge

A desire to be closer to the urban scene has also attracted some young professionals to reside in inner ring suburbs such as Grosse Pointe and Royal Oak, Detroit. Detroit's proximity to Windsor, Ontario, provides for views and nightlife, along with Ontario's minimum drinking age of 19. A 2011 study by Walk Score recognized Detroit for its above average walkability among large U.S. cities. About two-thirds of suburban residents occasionally dine and attend cultural events or take in professional games in the city of Detroit.
Who conducted a study about Detroit's walk-ability?
Walk Score