Step back in time at Oura Cathedral, Japan's oldest church and a designated National Treasure. As you walk up the stone-paved slope from the tram stop, you'll feel the historic atmosphere of this sacred place, which holds the powerful story of Japan's "Hidden Christians." The stunning Gothic architecture is a sight to behold, and your admission of ¥1,000 includes a visit to the fascinating Christian Museum next door. Be sure to wear comfortable shoes, as the area has some inclines, but the experience and the views over the city are well worth it.