Remesal’s team washes and sorts thousands of amphoras each year’s two-week ------------------ .

--------------------------- started working at Monte Testaccio in the late 19th century.

Remesal doesn't believe that the whole mountain is made of  ------------------------ without any soil or rubble.

Monte Testaccio stands near the ancient Rome’s ------------------------- .

There is no information on how many amphoras are there.

 The garbage dump is as popular as the Colosseum in Rome.

Ancient Roman economy depended on oil.

Remesal says that Monte Testaccio is a great place to study economics.

World’s biggest garbage dump is surrounded by restaurants and nightclubs.

It is unknown for --------------------------  what’s underneath the grass, dust, and scattering of trees.