Helmichsteine is a prehistoric site located near the town of Wallenhorst in central Germany.

Killaclohane Portal Tomb, also known as the "Shrine of the Blackbird", is an ancient megalithic tomb located in County Kerry, Ireland.

Kleinenknetener Steine is a prehistoric site located in Lower Saxony, Germany.

Knockeen Portal Tomb is a prehistoric monument located in County Waterford, Ireland. It is also known as the 'Leacanabuaile Portal Tomb' or the 'Cnocín an Chinnéidigh Portal Tomb'.

Meehambee Dolmen, also known as the "The Harp Stone," is a prehistoric monument located in County Roscommon, Ireland.

Borkowo Passage Grave is a megalithic tomb located in Borkowo, Poland.

The Glantane East megalithic complex is a group of ancient standing stones located in County Cork, Ireland.

The Gaulstown Dolmen is a megalithic monument located in County Meath, Ireland.

Ballynageeragh Portal Tomb is a megalithic tomb located in County Waterford, Ireland. It is one of the finest examples of this type of tomb in Ireland.

Derfflinger Hügel is a prehistoric and early historical burial mound near Kalbsrieth, Thuringia, Germany.

The Neolithic Cerro de la Barca dolmen (also called Dolmen of Valdecaballeros or Tholos del Cerro de la Barca) is located on a hill southeast of Valdecaballeros, Spain.

The Chindlistein is a ritual place, where people presumably practised pregnancy rituals since the neolithic age.