Memorial gates and arches

Memorial gates and arches are architectural monuments in the form of gates and arches or other entrances, constructed as a memorial, often dedicated to a particular war though some are dedicated to individuals. The function, and very often the architectural form, is similar to that of a Roman triumphal arch, with the emphasis on remembrance and commemoration of war casualties, on marking a civil event (the country's independence, for example), or on providing a monumental entrance to a city, as opposed to celebrating a military success or general, though some memorial arches perform both functions.

Source: Wikipedia — Memorial gates and arches (CC BY-SA 4.0)