Complex sentence: Nearly all of the buildings were destroyed in the Ōnin War in 1467; however, many of them have been rebuilt, and today the gardens of Myōshin-ji are a nationally-designated Place of Scenic Beauty and Historic Site.
Split into simpler sentences: Nearly all of the buildings were destroyed in the Ōnin War in 1467; however, many of them have been rebuilt. The gardens of Myōshin-ji are a nationally-designated Place of Scenic Beauty and Historic Site.