In the Balmoral estate in Scotland, they are used to honour members of the Royal family, and Prince Albert's cairn, a granite pyramid standing at an impressive 41 ft, is the largest of the 11 ...

Ancient landmarks that have endured the passage of time and silently observed human history are scattered across the globe.

this hidden pyramid is a unique tribute that many Scots are unaware of. The structure is actually a cairn, one of 16 that dot the Balmoral and Birkhall estates, Scottish Daily Express reported.

Scorpion-Pyramid Loop is located behind Sedona Red Rock High School ... Over time, hikers have added cairns to the loop to ...