In the evening, naturally go to see the sunset. Going east along Princes Street, you will come to the lush Carlton Hill. It is famous because all the promotional maps and postcards you have seen about Edinburgh can basically find a picture taken from this angle on the mountain. Standing on the top of the hill, Edinburgh Castle stands tall and guards the quiet little town, the scenery is very beautiful. There are two monuments, one to commemorate the death of the Napoleonic war, and the imitation of the Parthenon temple in Athens. The monument was not completed due to insufficient budget, but the incompleteness does not affect its grandeur. It is absolutely on the whole mountaintop. The first landmark to attract attention. The other is the Nelson Monument, built to commemorate Admiral Nelson. When the Edinburgh Castle fires at 1 pm every day, the small ball at the tip of the Nelson Monument will descend. When the sun sets, the golden afterglow spills over the building, and the whole building is shrouded in a sacred atmosphere.