Thomas Hardy's Wessex is the real Dorset and Wiltshire under invented names: Puddletown becomes Weatherbury, Bere Regis becomes Kingsbere, and Stonehenge keeps its own name in Tess of the d'Urbervilles.
The route starts at Hardy's birthplace cottage and his house Max Gate, then follows his novels to the real villages and ancient sites behind them: Puddletown, Maiden Castle, Bere Regis and finally Stonehenge. Hardy himself called Wessex a "partly real, partly dream-country", so some pins mark the area rather than one building.
A Cornish knight fetches an Irish princess for his uncle the king, and a love potion on the ship ruins everything. Tristan and Iseult is a medieval legend told in many versions since the 12th century, and every retelling sets it on a slightly different map.
This route follows the lovers from Tristan's drowned homeland to Dublin, Cornwall and Brittany, ending on the island that carries his name. Almost every site is a tradition rather than a fact, so each pin says how sure it is.