In addition to the affinity for certain buildings that may appear often in your dreams, you'll also find yourself very drawn to some historical times or events, but be totally disinterested in others. You may also bring little idiosyncrasies into this life from times past. For instance I'm deathly afraid of bears to the point that I can't take a walk in a park or woodland without checking constantly for places to escape should a bear suddenly appear. I literally worry about bears the entire time I'm in the woods, even if it's a city park. I believe this to be tied to a past life dream I experienced in which I was killed by a bear (see November 1, 2009 post "More on reincarnation" for a description of the dream). My sister instinctively hides or ducks in terror when an aircraft unexpectedly roars by overhead - perhaps a throwback to the air raids of the Second World War. Sometimes our little quirks are caused by something that happened in this life, but sometimes there are no rational causes that we're aware of. In those cases, reincarnation may be the reason. I'll bet you can think of at least one irrational fear or idiosyncrasy that you're carrying today. It may very well be that you've brought it from another incarnation.
You'll probably also find yourself drawn to certain periods in time. Maybe you can't read enough about the ancient Egyptians, or you've always wanted to visit that area of the world. You might feel a strong kinship to the peoples of South America, but be totally apathetic about the Nordic races. You may even see an artifact or location while watching tv or a movie and know immediately where and/or what it is. All of these little affinities are clues about your past. Tiny reminders of lifetimes that are so impressed into your psyche that you still remember them fondly (or perhaps with fear) today. If you can connect some of these affinities to vivid dreams you've had, you could very well be experiencing a glimpse of another lifetime.
Keep in mind that in most of your lifetimes you've had a plain and unremarkable existence in terms of history. There was only one Napolean, one Marie Antoinette and one Queen Victoria. The vast majority of the world was and is made of up of people living simple and often hard existences on their long journey of learning. Don't be afraid to realize that you've been a poor labourer in industrial Europe or a simple fisherman in a nameless coastal town. Begin to get in touch with your past by connecting what's in your dreams to what's in your life and never be afraid of who you may have been.