Martial Monastery is a very good Ancient Wonder because it's boosting the health of all your troops. By the time you get it up to max level it's like having 80% of a Dwarven Armourer constantly running in your city. The added culture is also very useful. A high level MM can negate the need to have several other culture buildings. Last time I looked I think mine was giving me almost 70k culture.
Martial Monastery is a very good Ancient Wonder because it's boosting the health of all your troops. By the time you get it up to max level it's like having 80% of a Dwarven Armourer constantly running in your city. The added culture is also very useful. A high level MM can negate the need to have several other culture buildings. Last time I looked I think mine was giving me almost 70k culture.