I attended a wedding the Oude Kerk and it was one of the more unique experiences in my life. The church is the oldest church in Amsterdam and is located in the Red Light District, so expect to see some shady characters if you visit. The wedding was non-traditional, so it was a mixture of Dutch and American. I would definitely visit the Oude Kerk, even if I weren’t attending a wedding. European churches are always great spots to visit and this one was no different. It is gorgeous on the inside. They are planning a major renovation, however, so it could be closed sometime toward the end of 2015/2015, so make sure to check out their website or call ahead.