The breathtakingly gorgeous, many-pinnacled Mandir in northwest London is the largest Hindu temple outside of India. This fabulous temple was only completed in 1995. Some 5,500 tons of Italian Carrara marble and Bulgarian limestone were carved in India and shipped here, where they were assembled by volunteers—its dome was built without using steel or lead. The interior is as complicated and as white as a doily and is apt to amaze even people generally unimpressed by such virtuosity. The work, done entirely by hand, is eye-popping. Tourists are welcomed—there’s even an “Understanding Hinduism” exhibition. If you’re entering, shorts or skirts must not fall higher than the knee (although ankle-length is preferable and sarongs are available to borrow); visitors must also remove their shoes.