The hyper-trendy Harajuku district of Tokyo is better known for its street style scene than for its religious structures. But you can take a break from a busy day of shopping and visit this sleek, modernist Protestant church that opened in 2006. The design concept is based on the lucky number seven, so there are seven gently curving arches in the nave. The church also doubles as a concert hall, so the acoustics are impeccable.