This is part 43 of the puzzle series Around the World in Many Days. Each part is solvable on its own.
This is a Quadritaisho puzzle. Divide the grid into rooms by drawing borders along grid lines. Each room contains exactly one symbol (circle, diamond, vertical bar, or horizontal bar). Rooms with a vertical bar | are symmetrical along an axis which runs vertically through the bar. Rooms with a horizontal bar — are symmetrical along an axis which runs horizontally through the bar. Rooms with a circle ● are 180° rotationally symmetrical with the circle in the central point, and rooms with a diamond ◆ are 90° rotationally symmetrical with the diamond in the central point. Some symbols have a coloured background; in the finished grid, shade the entire room in the same colour as the background of its symbol.
I was actually meant to visit another destination before this one, but the plans have changed and this one was moved up instead. This is of course a completely plausible turn of events (as there are plenty of reasons one might have to deviate from the original plan during a round-the-world trip), and not at all an indicator of someone having been stuck trying to come up how to finish the next intended puzzle for the last three weeks... Anyway, today I have climbed quite a few steps to visit an extremely impressive religious site. Can you guess where I am?
Gladys will return in Escape from a Grand Canyon.