Geograph - photograph every grid square

Knaresborough station serves the town of Knaresborough in North Yorkshire. It is located on the Harrogate Line 16.75 miles west of York and is operated by Northern Rail who provide all passenger train services.
The East and West Yorkshire Junction Railway (E&WJR) was opened from York (Poppleton Junction) to a temporary terminus known as Hay Park Lane, Knaresborough on 30 October 1848. The E&WYJR was absorbed by the York and North Midland Railway on 1 July 1851. Three weeks later, with the completion of the stone viaduct crossing the River Nidd at Knaresborough on 21 July 1851, the temporary station was closed and a new Knaresborough station opened on the current site just beyond the stone viaduct.
In 1865 the North Eastern Railway replaced the 1851 station with a design by Thomas Prosser. The station was rebuilt c.1890. The 1851 Water tower is still in place.
The station is Grade II listed. Link

Listed buildings and structures are officially designated as being of special architectural, historical or cultural significance. There are over half a million listed structures in the United Kingdom, covered by around 375,000 listings.
Listed status is more commonly associated with buildings or groups of buildings, however it can cover many other structures, including bridges, headstones, steps, ponds, monuments, walls, phone boxes, wrecks, parks, and heritage sites, and in more recent times a road crossing (Abbey Road) and graffiti art (Banksy 'Spy-booth') have been included.

In England and Wales there are three main listing designations;
Grade I (2.5%) - exceptional interest, sometimes considered to be internationally important.
Grade II* (5.5%) - particularly important buildings of more than special interest.
Grade II (92%) - nationally important and of special interest.

There are also locally listed structures (at the discretion of local authorities) using A, B and C designations.

In Scotland three classifications are also used but the criteria are different. There are around 47,500 Listed buildings.
Category A (8%)- generally equivalent to Grade I and II* in England and Wales
Category B (51%)- this appears generally to cover the ground of Grade II, recognising national importance.
Category C (41%)- buildings of local importance, probably with some overlap with English Grade II.

In Northern Ireland the criteria are similar to Scotland, but the classifications are:
Grade A (2.3%)
Grade B+ (4.7%)
Grade B (93%)

Read more at Wikipedia Link