Ardenno

Italy

Ardeshir Castle

Iran

Ardglass Castle

Ireland

Ardooie Castle

Belgium

Ardud

Romania

Ardvarna

Canada

Arechi Castle

Italy

Areimeh Castle

Syria

Ruins

Arena Po

Italy

Arenberg Castle

Belgium

Arezzo

Italy

Arg of Alma Dushen

Iran

Arg of Anar

Iran

Arg of Karim Khan

Iran

Arg of Kashmar

Iran

Arg of Kolah Farangi

Iran

Arg of Murcheh Khvort

Iran

Arg of Tabas

Iran

Arg of Tabriz

Iran

Arg-e Bam

Iran

Ariljača

Serbia

Remains

Arkadia Castle

Greece

Frankish period

Arkessini Castle

Greece

Ancient period

Arki Fort

India

Armory of the First Corps of Cadets

the United States

Arnala fort

India

Arnjots Vank

Armenia

Arreskov Castle

Denmark

Arresødal Castle

Denmark

Arta Castle

Greece

Byzantine period

Aruch Castle

Armenia

Arvier

Italy

Asdal Castle

Denmark

Asen's Fortress castle

Bulgaria

Asfan Castle

Saudi Arabia

Asheri Fort

India