Here are the answers to this week's Sunday Picture Quiz. How well did you do?

1. The market cross in Masham.

A stone market cross was built in Masham's market place in the Middle Ages, after the town was granted a market charter in 1251.

The base is original, but the shaft was replaced in the 18th century. Nevertheless, it is a Grade II listed building and a Scheduled Monument.

2. Well heads in Harrogate.

These well heads, which were restored by Harrogate Civic Society in 1999, cover just two of the many water sources that ooze from the ground in Bogs Field, better known nowadays as the Valley Gardens.

The one in the foreground is the pure chalybeate well, which according to the brown plaque attached to it gives water of very low salinity, similar to High Harrogate's St John's and Tewit Wells, all of which were once used to treat delicate and anaemic patients.

The well in the background is the magnesia well, which was identified in 1652 by Dr Short in his popular book, The Yorkshire Spaw. Its waters were recommended as a powerful diuretic.

3. New Bridge, near Birstwith.

The original packhorse bridge, on the route from Ripon to either Otley or Skipton (sources differ), was built in 1615, but it was demolished when this one was built 25 yards downstream more than 200 years ago, in 1822.

4. The Devil's Arrows, Boroughbridge.

The picture shows two of the three surviving stones, which were quarried nearly 5,000 years ago, probably at Plumpton Rocks, about nine miles away.

They are aligned south-east to north-west, almost exactly in line with the Thornborough Henges, which also date from the late neolithic or early bronze age and lie nearly 10 miles to the north-west.

Too easy or too difficult? Let us know what you think of our quiz by contacting us at letters@thestrayferret.co.uk. Please do send us tricky pics of the area that we can include – and we'll credit your contribution. Thank you!