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[occam]

Here are a few adventures that feature pyramids:

Egyptian-style
Pharaoh (TSR, 1e or 2e, 5th-7th level)
Khamsa's Folly (Dungeon #40) (TSR, 2e, 4th-6th level)
The Shattered Statue (Cities of Bone) (TSR, 2e, 4th-7th level)
Hamunaptra (Green Ronin, 3e, no actual adventure)
Beyond the Towers (Green Ronin, 3e, 2nd-4th level)
Entombed with the Pharaohs (Paizo, 3e, 6th level)
The Pact Stone Pyramid (forthcoming) (Paizo, 3e, 8th level)

Ziggurats
Ancient Kingdoms: Mesopotamia (Sword & Sorcery, 3e, ?)
The Sunken Ziggurat (Goodman Games, 3e, 5th-7th level)

Mesoamerican-style
The Hidden Shrine of Tamoachan (TSR, 1e, 3rd-7th level)
The Sea Wyvern's Wake (Dungeon #141) (Paizo, 3e, 3rd-5th level)
Mictlatepec and the Mictlaneca (Maztica boxed set, really an adventure outline) (TSR, 2e, 7th level)
The Fires of Zatal (TSR, 2e, 1st-3rd level)
Endless Armies (TSR, 2e, 4th-6th level)
Curse of the Emerald Cobra (Goodman Games, 3e, 6th-8th)

Other
The Lost City (TSR, Basic, 1st-3rd level?)