The kruithuis is a 17th-century munition depot. It was built far out of the city center after the old munition depot exploded (Delftse Donderslag), The site features a gate house and 2 magazines build into the water. Nowadays the complex houses a scouting organisation and a student fraternity. There are no tours or visitor centre, but it is a great place to visit for lovers of old architecture.
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University Library
Between the Mekelweg and the Schoemakerstraat sits one of the largest technical libraries of Europe. It is housed in a glass building, with a sloping grass roof penetrated by a concrete cone. Free entrance during opening hours.
formerly Techniekmuseum
The museum, run by Delft University, is housed in a beautiful building. It displays a wide range of historical engines, as well as the history of the calculator. Activities aimed at children are organized regularly.
ArsenaalDelft
The building of the former arsenal, picturesquely located at the fork of canals, used to house the Royal Army Museum (Legermuseum) until it moved to Soest in 2013. It is now in redevelopment, but you can still admire the building from the outside.
VOC-Huis
The Dutch East India Company House consisted of 6 chambers. One of them was located in Delft. Delft had a harbour (Delfshaven) at that time, next to Rotterdam. The harbour was later engulfed by the growing city of Rotterdam.
Botanical Garden
The botanical garden of Delft University houses a large collection of 'utility' plants, both in greenhouses and a nicely laid out park. Good place to spend a few quiet hours on a sunny afternoon.
This former synagogue was built in 1862 as temple, to a design of Ir. Leon Winkel. The building houses a permanent exhibition to the remembrance of the Jewish victims in the Second World War.