All Question On One Page false false Pop-up galleries are quite a new idea in London. 1 They're created very quickly. 1 They're usually open for a few weeks or a month. 2 They sometimes use buildings without the owner's permission. 2 You have to pay a small fee to get in. 2 The atmosphere is less formal than in a normal gallery. 1 They usually show work by younger or newer artists. 1 Artists are not allowed to sell their work at a pop-up gallery. 2