2 Best Sights in Amsterdam, Netherlands

This former gas factory from 1885 is now an arts and cultural center comprising 13 monumental buildings of various shapes and sizes, which house media companies, art exhibitions, food markets, and assorted festivals. There are also bars, nightclubs, restaurants, and a cinema.

By the beginning of the 18th century, Amsterdam had a virtual monopoly in the diamond industry in Europe, so when diamonds were discovered in South Africa in 1869, there was a windfall for Amsterdam's Jewish communities, a third of whom worked in the diamond trade. Built in 1879, Gassan Diamonds was once home to the Boas diamond-polishing factory, the largest in the world, where 357 diamond-polishing machines processed around 8,000–10,000 carats of rough diamonds per week. Today, Gassan offers polishing and grading demonstrations and free hour-long tours, in more than 27 languages, of the building and its glittering collection of diamonds and jewelry.