Jay Y.
Yelp
Nearby the Pantheon, Basilica di Santa Maria sopra Minerva is often ignored even in a heavily-populated tourist center because of its seemingly plain facade, but this church is a hidden gem full of both artistic and religious treasures!
Loosely translated "Our Lady above Minerva", this church is built on top of the temple ruin that was mistakenly attributed to the Roman goddess Minerva, and is Rome's only Gothic-style church where almost all others were renovated to Baroque-style. Nonetheless, Santa Maria sopra Minerva's chapels are still filled with many colorful fresco by early Baroque masters that strike an interesting contrast to the Gothic interior.
However, the prized art treasure of all is Michelangelo's "Cristo della Minerva" - Christ the Redeemer! Even though the Renaissance master had to rush this art commission, his sculpture is nonetheless remarkable. While it is nowhere near the fame of his David, Michelangelo's Christ the Redeemer is no less detailed in the physiology that is especially prominent in the similarly contrapposto position. Take your time to admire as this is a little known gem for now with no crowd fighting you or no barrier to distance you unlike Michelangelo's more famous works! One critic said that the Christ's knees are worth more than the whole Rome, so be the judge of that.
If you are already in the Pantheon area, I highly recommend walking into Basilica di Santa Maria sopra Minerva! While Rome has churches that are more beautiful, few can compare the treasures that this basilica holds.
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tl;dr version:
1) "Hidden gem" by the Pantheon
2) Only Gothic church in Rome, and contains many art and religious treasures
3) Get close to one of Michelangelo's masterpieces inside
*P.S. For the religious, this basilica houses the remains of one of the Italy's two patron saints, St. Catherine of Siena, the pious nun who was behind the drive to bring back the papacy from France back to Rome! (Unfortunately or fortunately depending if you live in Siena or not, her head is in a separate place at Siena's cathedral)