Frederik's Church, also known as The Marble Church, is a prominent landmark in Copenhagen, renowned for its stunning architecture, particularly its massive dome. Accessibility is generally good, though some areas may have limited access for those with mobility issues. Visiting solo allows for flexibility, but guided tours offer deeper insights into the church's history and design. There are generally no seasonal restrictions, but opening hours may vary, so it's best to check in advance. The church itself is free to enter, though climbing the dome may incur a small fee. A typical visit lasts 1-2 hours, depending on interest level and whether a tour is taken. Consider checking for special events or concerts that may be taking place during your visit.