Nestled in the heart of Lisbon, the iconic Church of Santa Engrácia, now designated as the National Pantheon, is a masterpiece of Baroque architecture. Its construction spanned an unbelievable 285 years, earning it a reputation as the longest-running construction project ever in Portugal. Adorned with intricate dome mosaics and marble interiors, the building is a tribute to the country's illustrious historical figures. Visitors often marvel at the panoramic views of the cityscape from its rooftop terrace. With its storied history and stunning design, this church remains a testament to Portuguese heritage and architectural ingenuity.