Masmak fort

Saudi Arabia

Masnago Castle

Italy

Massa

Italy

Massa Marittima

Italy

Mastuj Fort

Pakistan

Masyaf Castle

Syria

Partially restored

Mategriffon

Italy

Matei

Romania

Matiabag Palace

India

Matilde Tower

Italy

Matochina Fortress castle

Bulgaria

Matsue Castle

Japan

Matsukura Castle

Japan

Matsumae Castle

Japan

Matsumori Castle

Japan

Matsumoto Castle

Japan

Matsushiro Castle

Japan

Matsuyama Castle

Japan

Matsuzaka Castle

Japan

Maurick Castle

the Netherlands

Maxburg Castle

Belgium

Maymun-Diz

Iran

Mazzo di Valtellina

Italy

Mazzè Castle

Italy

McTavish reservoir

Canada

Meadow Brook Hall

the United States

Medak Fort

India

Medieval Seat Fortress of Suceava

Romania

Medieval Town of Dubrovnik (Bosnia and Herzegovina)

Bosnia and Herzegovina

Medieval city walls of Pest

Hungary

Medieșu Aurit

Romania

Medija Castle

Slovenia

Medininkai Castle

Lithuania

Medvedgrad

Croatia

Medzhybizh Castle

Ukraine

Meeuwen-Gruitrode Castle

Belgium