The Pilchowice Dam is one of Poland's most breathtaking feats of engineering — the country's tallest stone arch dam, rising 62 metres above the Bóbr River valley and forming a stunning backdrop to the shimmering Pilchowice Lake. Built between 1902 and 1912, it combines industrial grandeur with natural beauty in a way that is genuinely hard to forget.

The atmosphere here is something special. The massive stone wall blends almost organically into the forested hillsides of the Bóbr valley, and standing on the dam's crest you get sweeping views over a 240-hectare reservoir flanked by wooded slopes. Spring and summer bring lush greenery and sparkling water; autumn turns the surrounding hills into a tapestry of gold and amber; and on misty winter mornings the dam takes on a moody, almost gothic feel. It is equally rewarding in every season.

• Pilchowice village (parking near the dam) — reachable by car or by train on the Jelenia Góra–Żagań line (Bóbr Valley Railway); the dam is right next to the station; difficulty: easy
• Footpaths along the Bóbr valley allow walking access from nearby villages

• The hydroelectric power plant at the dam is still operational — after a 2013 upgrade its capacity is 13.364 MW
• A historic railway bridge next to the dam was officially opened on 16 November 1912 in the presence of Kaiser Wilhelm II
• The reservoir reaches a depth of 46 m at the dam wall and holds 50 million m³ of water
• The dam and its surroundings were used as a setting in the video game 'The Vanishing of Ethan Carter' and the Netflix series 'Dog Hill'

Here is a fact worth sharing: when the dam was completed in 1912 it was the largest stone-and-concrete dam in the whole of Europe — an impressive title that speaks to the ambition of its designers, including Professor Otto Intze, who drew up the original plans.