The list of castles is a link page for any castle in the sense of a fortified building.

Afghanistan

Albania

Argentina

• Castillo Naveira

Armenia

Austria

Azerbaijan

Belarus

Belgium

Bosnia and Herzegovina

Brazil

Bulgaria

Canada

China

Colombia

• Castillo San Felipe de Barajas

Croatia

Cuba

• La Cabaña
• Morro Castle
• Real Fuerza castle
• San Pedro de la Roca Castle

Cyprus

Czech Republic

Denmark

Dominican Republic

• Fortaleza Ozama

Egypt

Estonia

Ethiopia

• Guzara Castle
• Fasilides Castle
• Kusquam Castle

Finland

France

Germany

Ghana

Greece

Guernsey

Hungary

India

Iran

Iraq

Ireland

Isle of Man

Israel

Italy

Japan

Jersey

Jordan

Kenya

• Fort Jesus
• Lord Egerton Castle (Ngata)

Korea

Latvia

Lebanon

Libya

• Murzuk Castle in Murzuk
• Sabha Castle in Sabha
• Red Castle in Tripoli

Liechtenstein

Lithuania

Luxembourg

Malta

Mexico

Moldova

• Soroca Castle

Mongolia

• Artificial Lake Castle
• Mongol Castle
• Ordu-Baliq
• Sangiin Kerem
• Tsagaan Baishin of Choghtu Khong Tayiji

Namibia

Netherlands

New Zealand

• Cargill's Castle
• Larnach Castle

North Macedonia

Norway

Oman

• Al Hazm Castle
• Jabrin Castle
• Nizwa Castle
• Rustaq Castle

Pakistan

Poland

Portugal

Romania

Russia

Saudi Arabia

Serbia

Slovakia

Slovenia

South Africa

• Castle Kyalami
• Castle of Good Hope
• Castle On the Cliff
• Erasmus Castle
• Fort Amiel
• Fort Beaufort
• Fort Cox
• Fort Frederick
• Fort Hare
• Fort Merensky
• Fort White
• Knoetzie Castles
• Ohrigstad Fort
• Pretoria Forts
• Voortrekker Fort

Spain

Sri Lanka

Sweden

Switzerland

Syria

Tibet

• Potala
• Yungbulakang Castle

Turkey

Ukraine

United Kingdom

United States

Venezuela

Yemen