Walk the crater rim of the volcano that buried Pompeii, with the Bay of Naples below.
The old town inside an extinct volcano’s crater, with the Cisterns of Tawila and Ottoman-era streets.
Maya "Pompeii" buried by ash, UNESCO-listed.
Antigua's iconic yellow arch.
Sail through a narrow gap into the flooded caldera of an active volcano, past a ruined whaling station and beaches warm enough to dig a hot bath.
Infobox
