A red light on a cross in the cupola above the altar shows where a nail from the cross of Christ’s crucifixion is kept. This relic is only shown for three days each year in mid-September.
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Henk Bekker is a European travel writer specializing in transportation, cultural destinations, and practical travel advice for visitors to Europe. His work focuses on clear, up-to-date guides that simplify complex travel systems such as public transportation, tickets, and routes.
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