Castles and palaces
Whether tourists flock to these sites because they're historical or simply because they're pretty, these castles and palaces are common destinations. See Hampton Court to imagine the life of Henry VIII (and see the traces his wives left in the architecture). Gawk at the extreme opulence of the Château de Versailles. Relax in the impressive formal gardens. No matter why the tourists visit, one thing is for certain as an American -- there are not many buildings like this at home.
To see buildings from a specific era, you can look through images of architecture from the Middle Ages or the Renaissance; for a broader perspective, browse images tagged with history.
