The Grand Palaceviews: 3700
The Royal Palace (พระบรมมหาราชวัง). It's a must visit place on any trip to Bangkok, but admission isn't cheap. If you think your visit to Thailand will be the last, then go. Think carefully and decide. There is an entrance fee for foreigners and no entry for Thais.
As of 2019, it is 500 baht (about 19,000 won). You will not be able to enter if you are wearing short clothes/skirts, shorts, or ripped pants. Business hours are from 8:30 am to 3:30 pm.