Ancient Pyramids exist not only in Egypt, but in many places around the world. The pyramids don't all follow the same shape, but almost always have a geometric pyramid shape to their building.
Egyptian Pyramids
Dahshur
Giza
Other
Bent Pyramid
Menkaure's Pyramid
Pyramid of Meidun
Black Pyramid
Khafre's Pyramid
Red Pyramid
The Great Pyramid
Chinese Pyramids
Xi'an Pyramids
NOTE: The 'pyramids' of Xi'an are actually large pyramid-shaped mounds of earth
European Pyramids
Bosnia
France
Greece
Italy
Spain
Visočica Hill
Pyramid of Falicon
Pyramid of Hellinikon
Pyramid of Cestius
Pyramids of Güímar
NOTE: Visočica Hill is a pyramid-shaped hill and is debated whether to be considered a pyramid officially.
NOTE: The Falicon Pyramid is extremely Egyptian in design, but is much smaller and seems to have lost the top.
NOTE: The Pyramid of Hellinikon is almost completely destroyed and is considered a pyramid from the fact that the sides slant upward and would eventually meet to create one, or suddenly end at a flat top.