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The Auditorio de Tenerife is a Spanish auditorium in Santa Cruz de Tenerife.It's concrete shells make it a famous landmark of Spain.It sits next to the Atlantic Ocean,and has many similarities with the Sydney Opera House.It sits next to an ocean and has shells.How long can it last?

100 years after people:The base of the shells has been weakened by waves.Finally,one shell collapses,causing a chain reaction through the structure.

150 years after people:The auditorium finally slides into the ocean.