Liquid Helium at $2.2\mathrm{ }\mathrm{K}$ and at $1$atm pressure flows in the upward direction. It is because of its low

•  If at very low temperature we try to cool  the gas and if that gas forms super fluid rather than being condensed then we say that the gas follows  cryogenic property.
• The property of super fluid is that they have low resistance to flow, that is the gas flows smoothly and we can say that this property is called viscosity

Therefore, Liquid Helium at $2.2\mathrm{ }\mathrm{K}$ and at $1\mathrm{ }\mathrm{a}\mathrm{t}\mathrm{m}$ pressure flows in the upward direction. It is because of its low viscocity.