The Netherlands has a 2.2% tax on secondary properties with a €50k threshold (total wealth, not per-property). So any holiday home, shed, storage locker, garage space, parking spot, bungalow, pied-a-terre, apartment for your children falls under that tax.

It's.... problematic to say the least. Say you bought a bungalow for €30k in the 2000s that you frequently visit to escape the city. You are a middle class worker, it's paid off and monthly costs are minimal. It is now worth €350k. You need to pay €7700 a year. Most people don't have that type of money so they are forced to sell.