United Kingdom: Abergynolwyn Station

Abergynolwyn railway station is a station on the Talyllyn Railway near Abergynolwyn, Gwynedd, in Mid-Wales. It is 6.55 miles (10.54 km) from Tywyn Wharf. The name 'Abergynolwyn' means 'Mouth-of-the-River-with-a-Whirlpool'. This now inscribed in UNESCO heritage list.

 Thanks to Mr Aled. 

United Kingdom: Conwy Castle

Conwy Castle is a fortification in Conwy, located in North Wales. It was built by Edward I, during his conquest of Wales, between 1283 and 1289. Constructed as part of a wider project to create the walled town of Conwy. UNESCO considers Conwy to be one of "the finest examples of late 13th century and early 14th century military architecture in Europe", and it is classed as a World Heritage site.

Thanks to Ms Anu. Anu has used two stamps. One on the right is from set of 6 issued in 2011. The stamp shows women in stain glass which was designed by Edward Jones in 1864. The 6 stamps were released under the title Morris, Marshall, Faulkner & Co. This Company(1861–1875) was a furnishings and decorative arts manufacturer and retailer founded by the artist and designer William Morris with friends from the Pre-Raphaelites. With its successor Morris & Co. (1875–1940) the firm's medieval-inspired aesthetic and respect for hand-craftsmanship and traditional textile arts had a profound influence on the decoration of churches and houses into the early 20th century. The 10p stamp is a Christmas issue.

United kingdom: Castles and Town Walls of King Edward in Gwynedd

The castles of Beaumaris and Harlech (largely the work of the greatest military engineer of the time, James of St George) and the fortified complexes of Caernarfon and Conwy are located in the former principality of Gwynedd, in north Wales. These extremely well-preserved monuments are examples of the colonization and defence works carried out throughout the reign of Edward I (1272–1307) and the military architecture of the time. 

Thanks to Ms Mia.

United Kingdom: Pontcysyllte Aqueduct and Canal

Situated in north-eastern Wales, the 18 kilometre long Pontcysyllte Aqueduct and Canal is a feat of civil engineering of the Industrial Revolution, completed in the early years of the 19th century. Covering a difficult geographical setting, the building of the canal required substantial, bold civil engineering solutions, especially as it was built without using locks. The aqueduct is a pioneering masterpiece of engineering and monumental metal architecture, conceived by the celebrated civil engineer Thomas Telford. The use of both cast and wrought iron in the aqueduct enabled the construction of arches that were light and d strong, producing an overall effect that is both monumental and elegant. The property is inscribed as a masterpiece of creative genius, and as a remarkable synthesis of expertise already acquired in Europe. It is also recognized as an innovative ensemble that inspired many projects all over the world. 

Thanks to Sofia. 

Wales: Harlech Castle

Harlech Castle, located in Harlech,Gwynedd, Wales, is a concentric castle, constructed atop a cliff close to the Irish Sea. Architecturally, it is particularly notable for its massive gate house. It was built by King Edward 1 during his conquest of Wales.

Thanks to Mia.