Atlas Places Categories Resources Discuss

An atlas of Earth’s mysterious places — megaliths, pyramids, lost and sunken cities — with the evidence shown plainly: what is verified, what is contested, and what is still unknown.

Data CC BY-SA 4.0 · Photos per credit

Explore

Atlas map
All places
Categories
Countries
Contested & pseudo

Community

Theories & discussion
Lists
News & resources
Submit a resource

Mysteria

About the atlas
Data & verification
Licenses & credits
Create an account

© 2026 Mysteria. Exploring the ancient world.Map © OpenFreeMap · OpenMapTiles · OpenStreetMap contributors

Search Mysteria

Search places, or jump to a section

Tags12th-13th

#12th 13th

1 place carries this tag, across every kind and continent it appears in.

Filters

Verification

Pick several

Verified1 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

Category

Pyramids1 Unfinisheds1

All categories →

Country

All countries →

Heritage

UNESCO World Heritage only

Excavation

Partially excavated1

1 place

✓Verified

🇪🇬 Egypt · Pyramid

Mazghuna South Pyramid — Late 12th Dynasty Mudbrick Unfinished

Late Middle Kingdom (late 12th Dynasty c.1800 BCE) Amenemhat IV?/Sobekneferu? · 12th–13th Dynasty transitional late Middle Kingdom

Mazghuna South excavated by Petrie 1910 report Ernest Mackay 1911, unfinished late 12th structure with massive quartzite.