While Spain is full of history and gorgeous religious sites, one of the country's most awe-inspiring cathedrals is in this stunning under-the-radar city.

In Spain some cathedrals—such as the 13th-century cathedral of Toledo—were built over the site of mosques, to hammer home the symbolism that Spain was now a Christian country.

Window at the top of the south façade of the Cathedral in Seville, Spain,. (photo: o_andras / Creative Commons Attribution-Share Alike 4.0 International via Wikimedia Commons) ...