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.

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Fortified cities in Algeria matching “Algeria” · Mysteria

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Fortified cities in Algeria matching “Algeria”

3 places to sift through. Narrow by kind, country, period or how firmly each one is established — contested and pseudoarchaeological claims are labelled here, never hidden.

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Verified3 Widely accepted0 Contested0 Hypothetical0 Unverified0 Pseudoarchaeology0

3 places

🇩🇿 Algeria · Ancient city

Kalaa of Beni Hammad — Hammadid Fortified City

Islamic Hammadid (1007–1152 CE) · Berber Hammadid / Zirid

Kalaa (Qal'a) of Beni Hammad is the 1007 CE Hammadid capital 1418 m in Hodna mountains, UNESCO 102.

✓VerifiedUNESCO

🇩🇿 Algeria · Ancient city

M'Zab Valley — Ibadite Fortified Ksar Valley

Medieval Ibadite (11th–14th c to present continuous) · Ibadite Berber (Mozabite) / Rustumid

M'Zab Valley is the intact 11th c Ibadite Pentapolis 480 m deep limestone hamada: 5 fortified ksour (Ghardaïa, Beni Isguen, El Atteuf, Melika, Bou Noura) each on hill with pyramidal mosque-minaret,…

✓Verified

🇩🇿 Algeria · Ancient city

Mansourah — Marinid Fortified City of Tlemcen

Marinid (1299–1307 CE) · Berber Marinid / Zayyanid

Mansourah is the 1299–1307 Marinid siege-camp turned fortified city 4 km W of Tlemcen, built by Sultan Abu Yaqub to blockade Zayyanid Tlemcen for 8-year siege (longest medieval siege in Maghreb).