Saint Peter's Basilica, a monumental landmark in Vatican City, is highly accessible for most visitors, with elevators and ramps available for various sections, though navigating crowds can be challenging. Both solo exploration and guided tours are popular; guided tours often provide skip-the-line access and in-depth historical context, while solo visits allow for a more personal pace. The Basilica is open year-round, though hours vary seasonally, and peak tourist seasons (summer, religious holidays) see immense crowds. Entry to the Basilica itself is free, but climbing the Dome costs approximately €8-10, and guided tours incur additional fees. A typical visit duration ranges from 1 to 3 hours, extending if you climb the Dome or take a comprehensive tour. Essential tips include adhering to a strict dress code (covered shoulders and knees), arriving early to avoid long security lines, and being aware of potential access changes on Papal audience days (typically Wednesdays).