Study the vocabulary about places in different countries.
Mysterious - strange, not known, or not understood;

Archaeological - involving or relating to archaeology;

Site - a place where something is, was, or will be built, or where something happened, is happening, or will happen;

Huge - extremely large in size or amount;

Purpose - why you do something or why something exists;

To mark - make a mark on something or someone;

To allow - to give permission for someone to do something, or to not prevent something from happening;

To fence off - to separate an area with a fence in order to stop people or animals from entering it;

To protect  - to keep someone or something safe from injury, damage, or loss;

Damage - to harm or spoil something;

Sighting - an occasion when you see something or someone, especially something that is rare or trying to hide;

To resist - to refuse to accept or be changed by something;

Attempt - to try to do something, especially something difficult;

To prove - to show a particular result after a period of time.

These mysterious creatures live at the bottom of the ocean.

A huge cloud of dense smoke stretched across the horizon.

You're not allowed to swim when the red flag is flying.
