Constantly undergoing repair or construction, this Episcopal Cathedral is over 110 years old and a massive stone structure with many interesting exhibits inside. It is the largest Gothic cathedral in the world. Gorgeous stained glass windows. Poetry wall. Aside from holding worship service in the chapels and doing good works, there are children's workshops on medieval subjects like gargoyles, stained glass, etc. Many tourist buses stop here yet it doesn't seem crowded. Gift shop and tours available.