Basilica

The Latin  word basilica, was originally used to describe a Roman  public building, usually located in the forum of a Roman town. Public basilicas begin to appear in Hellenistic cities in the 2nd century BC.

Sarcophagus

A sarcophagus is a funeral receptacle for a corpse, most commonly carved or cut from stone. The word "sarcophagus" comes from the Greek meaning "flesh", and phagein meaning "to eat", hence sarkophagus means "flesh-eating"; from the phrase lithos sarkophagus.

Aqueduct - a water supply

An aqueduct is a water supply or navigable channel (conduit) constructed to convey water. In a more restricted use, aqueduct (occasionally water bridge) applies to any bridge or viaduct that transports water-instead of a path, road or railway-across a gap. Large navigable aqueducts are used as transport links for boats or ships.

Crypt - a stone chamber

In architecture, a crypt is a stone chamber or vault beneath the floor of a church usually used as a chapel or burial vault possibly containing sarcophagi, coffins or relics.