The Karlsteine Dolmen is a prehistoric megalithic monument located near the city of Osnabrück in the state of Lower Saxony, Germany.

The Dolmen di Sa Coveccada is a prehistoric megalithic structure located in the northern region of Sardinia, Italy.

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.

Kilmogue Portal Tomb, also known as "Harristown Dolmen," is a prehistoric monument located in County Kilkenny, Ireland.

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.

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

Brownshill Dolmen is a megalithic monument located in County Carlow, Ireland. It is one of the largest and most impressive dolmens in the country.

The Dolmen of Ellidshøj (also called Ellehøj or Ellenhøj in Danish) is located in the municipality of Ellidshøj, which belongs to Aalborg, Denmark.

The Dolmen El Milano (also called Cerca del Milano) is located west of Barcarrota, near Badajoz in Extremadura in Spain.

The dolmen in Eichholz is a Neolithic megalithic complex. It originated between 3500 and 2800 BCE and was constructed by the people of the funnel beaker culture.