Those interested in seeing the inside of the Executive Yuan (the building on the northeast corner of Zhongxiao and Zhongshan) can come to the Government Information Office (GIO) on Fridays between 10 and 4. Some of the guides speak English.
The GIO is just east of the Executive Yuan, on the corner of Zhongxiao East Road and Tianjin Street (catty-corner to what used to be the Lai-Lai Sheraton). The nearest MRT station is Shandao Temple.
Go to the east entrance of the GIO on Tianjin Street and look for the people in pink vests.
ID is required.