Rome, Italy: The Pantheon

The magnificent Pantheon, built by the Romans as a temple to all of their gods is the Eternal City's best-preserved monument. Engineers still admire how such a mathematically precise structure was built without modern technology. Standing under the massive solemn dome, you'll gain a new appreciation for the grandeur that was—and still is—Rome. Subscribe at http://goo.gl/8iBEnS for weekly updates on more European destinations.

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