Where is the Safari's History.plist file in iOS 7
Safari history file from iOS backup can be found as ~/Library/Application Support/MobileSync/Backup/[DEVICE GUID]/ed50eadf14505ef0b433e0c4a380526ad6656d3a .
Copy it, rename it as [something].plist and open it with plist viewer.

Also Bookmarks.db is d1f062e2da26192a6625d968274bfda8d07821e4 in the backup folder, RecentSearches.plist is 37d957bda6d8be85555e7c0a7d30c5a8bc1b5cce.