Pier

Piers must be built on, including over a Moat, but can't be built on. Piers can be used to extend the buildable area around a land mass.

Piers are treated like tiles and provides a foundation for other buildings, but not Farms or Orchards. s do not grow on Piers.

Piers can be built in to form a seawall that blocks Merchants, Transport Ships, and Vikings from landing or accessing a Dock. A Drawbridge an be built across a 1 tile gap to provide access for friendly ships.

Unlike Bridges, Piers do not need to be connected to Roads.