Their loss. I'm Jewish and while I disagree with Christianity I find it useful. Can never hope to learn about your own religion if you never learn about anyone else's.
My niece traveled to Israel for a semester but I won't post the blog and pictures because I don't think she needs to deal with god haters on her blog.
The truth is that a lot of churches have trips to Israel to teach the Bible as well as seminaries.
There are hundreds of books on the Jewish roots of our faith and CBD (Christian Book Distributors).
Christianbook.com: Sketches of Jewish Social Life: Alfred Edersheim: 9781565638310
Christianbook.com: The Temple: Its Ministry and Services, Updated Edition (hardcover): Alfred Edersheim: 9781565638266
Christianbook.com: The Life and Times of Jesus the Messiah, Updated Edition: Alfred Edersheim: 9781565638228
There are all kinds of books and studies on the history of the Jews.
[ame=http://www.amazon.com/Teaching-Tabernacle-Roy-Lee-Dewitt/dp/0801029872/ref=sr_1_1?ie=UTF8&qid=1407126054&sr=8-1&keywords=teachings+from+the+tabernacle]Teaching from the Tabernacle: Roy Lee Dewitt: 9780801029875: Amazon.com: Books[/ame]