The baroque "Chapel of Merchants, Shopkeepers and Bankers" was built at the end of the 1600s. This lesser known architectural jewel still holds numerous original artworks. The most noteworthy of them is the Perpetual Calendar built by the engineering Giovanni Plana — a primitive computing machine that allows its user to look up details about any date between the years 1 and 4000. Powered by a small wooden crank, the intricate gears and chains put into motion the nine inscribed cylinders, The chapel is only open to the public on the weekends, when mass is held. If you are lucky, you can attend the occasional classical music concert and experience the building's impressive acoustics.

Discover the jewels of the Dutch countryside on a fun day trip to Zaanse Schans, Edam, Volendam, and Marken leaving from Amsterdam. See typical Dutch windmills that are still in use today. Visit a local cheese producer, where the cheese master will explain how they produce Gouda and Edam cheeses. Discover the secrets of the klomp, the traditional Dutch clog, and much more.

In the historical heart of Amsterdam, rough diamonds are transformed into dazzling jewels every day. Book a free 1-hour tour and delve into the exciting world of diamond cutting at House of Gassan, where four centuries of craftsmanship and tradition are brought to life.