_{This is part 68 of the puzzle series Around the World in Many Days. Each part is solvable on its own.}

Dear Puzzling,

The top grid here is a Yin-yang puzzle. Shade some cells in the grid so that shaded and unshaded cells both form a single orthogonally connected area and no 2x2 square is fully shaded or unshaded. Cells containing a black circle must be shaded, and cells containing a white circle must be unshaded. Once you’ve solved the Yin-yang, use some of the given 24 pieces from the bottom grid to find out the final answer.

Today I have visited an archaeological site featuring the remains of a very ancient civilisation. Can you guess where I am?

Love, Gladys.

Solve on Penpa+

Gladys will return in Nice.

_{This is part 68 of the puzzle series Around the World in Many Days. Each part is solvable on its own.}

Dear Puzzling,

The top grid here is a Yin-yang puzzle. Shade some cells in the grid so that shaded and unshaded cells both form a single orthogonally connected area and no 2x2 square is fully shaded or unshaded. Cells containing a black circle must be shaded, and cells containing a white circle must be unshaded. Once you’ve solved the Yin-yang, use some of the given 24 pieces from the bottom grid to find out the final answer.

Today I have visited an archaeological site featuring the remains of a very ancient civilisation. Can you guess where I am?

Love, Gladys.

Solve on Penpa+

Gladys will return in Nice.