Pęclin

Duchnów [ˈduxnuf] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) north-east of Wiązowna, 10 km (6 mi) north-east of Otwock, and 25 km (16 mi) east of Warsaw.

Dziechciniec [d͡ʑɛxˈt͡ɕiɲɛt͡s] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Wiązowna, 7 km (4 mi) north-east of Otwock, and 26 km (16 mi) east of Warsaw.

Malcanów [malˈt͡sanuf] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) south-east of Wiązowna, 9 km (6 mi) north-east of Otwock, and 27 km (17 mi) east of Warsaw.

Żanęcin [ʐaˈnɛnt͡ɕin] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) south of Wiązowna, 6 km (4 mi) north-east of Otwock, and 23 km (14 mi) east of Warsaw.

Gmina Wiązowna is a rural gmina (administrative district) in Otwock County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Wiązowna, which lies approximately 7 kilometres (4 mi) north-east of Otwock and 23 km (14 mi) east of Warsaw. The gmina covers an area of 102.12 square kilometres (39.4 sq mi), and as of 2006 its total population is 9,890. The gmina contains part of the protected area called Masovian Landscape Park.

Wiązowna [vjɔ̃ˈzɔvna] is a village in Otwock County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Wiązowna. It lies approximately 7 kilometres (4 mi) north-east of Otwock and 23 km (14 mi) east of Warsaw.

Boryszew [bɔˈrɨʂɛf] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) north of Wiązowna, 9 km (6 mi) north-east of Otwock, and 22 km (14 mi) east of Warsaw.

Brzeziny [bʐɛˈʑinɨ] is a village in the administrative district of Gmina Halinów, within Mińsk County, Masovian Voivodeship, in east-central Poland. It lies approximately 4 kilometres (2 mi) south of Halinów, 14 km (9 mi) west of Mińsk Mazowiecki, and 26 km (16 mi) east of Warsaw.

Radiówek [raˈdjuvɛk] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 2 kilometres (1 mi) south of Wiązowna, 5 km (3 mi) north-east of Otwock, and 23 km (14 mi) east of Warsaw.

Stary Konik [ˈstarɨ ˈkɔnik] is a village in the administrative district of Gmina Halinów, within Mińsk County, Masovian Voivodeship, in east-central Poland.

Kopki [ˈkɔpki] is a village in the administrative district of Gmina Wiązowna, within Otwock County, Masovian Voivodeship, in east-central Poland. It lies approximately 6 kilometres (4 mi) south-east of Wiązowna, 8 km (5 mi) east of Otwock, and 28 km (17 mi) east of Warsaw.

The Ewa Reactor was Poland's first research nuclear reactor. Its name was derived from the first letters of the Polish words: Eksperymentalny (Experimental), Wodny (Water), and Atomowy (Atomic) as a reference to Ève Curie.