Museo Nacional de Historia, Castillo de Chapultapec, Mexico City
Tel: 52 55 5061 9228
Concierge.com's insider take:
A hilltop castle that presides over Bosque de Chapultepec (the city's largest park), the Castillo is the former home of Emperor Maximilian, whose fatal flaw was not realizing that his subjects weren't in the mood for monarchy. He was executed by antiroyalists, but rooms belonging to him and his wife, Empress Carlota, have been re-created here. One look at her sumptuous marble bath and you'll know why the people revolted. There are great views of the city from the balconies, but only on days when the skies aren't obscured by smog.
Open Tuesdays through Sundays 9 am to 5 pm.