How far will a WiFi bridge work?

Can you tell me how far a WiFi bridge is able to transmit a signal? I'm curious to know the range it has and if it's capable of reaching across larger distances, say from one building to another. Additionally, are there any factors that can affect its range, such as obstacles or interference from other devices? I'm looking to set up a WiFi bridge in my area and want to make sure it's effective for my needs.