The Pantheon, completed in 126 AD, features a dome with a diameter of 43.3 meters, making it the largest unreinforced concrete dome in the world. Entry is free, but guided tours start at €10. Visitors can also stroll the nearby Piazza Navona, measuring 240 meters long, showcasing Baroque architecture.

Published: 10/1/2025
Last Published: 1/26/2026
Updated: 6/8/2026
Location: Rome, Italy
Reading time: 6 minutes
See Roman Architecture - Rome travel guide

See Roman Architecture

The Pantheon, completed in 126 AD, features a dome with a diameter of 43.3 meters, making it the largest unreinforced concrete dome in the world. Entry is free, but guided tours start at €10. Visitors can also stroll the nearby Piazza Navona, measuring 240 meters long, showcasing Baroque architecture.

Marcus Cent
Updated Jun 8, 2026
6 min read
Marcus Cent

Marcus Cent

Marcus Cent has visited Rome many times over the years — enough to know the difference between the tourist-trap version of the city and the parts worth your time. He writes VisitRome.com's guides from first-hand experience, focused on the practical side: how to actually get into the Colosseum and the Vatican Museums without losing a morning in line, where to eat away from the main squares, and which neighbourhoods are worth basing yourself in.

Tags

Roman Architecture TourRome ancient landmarksColosseum and PantheonRoman architectural designEternal City architecture

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