  We report on the observation of a large topological Hall effect (THE) over a
wide temperature region in a geometrically frustrated Fe3Sn2 magnet with a
kagome-bilayer structure. We found that the magnitude of the THE resistivity
increases with temperature and reaches -0.875 {\mu}{\Omega}.cm at 380 K.
Moreover, the critical magnetic fields with the change of THE are consistent
with the magnetic structure transformation, which indicates that the real-space
fictitious magnetic field is proportional to the formation of magnetic
skyrmions in Fe3Sn2. The results strongly suggest that the large THE originates
from the topological magnetic spin textures and may open up further research
opportunities in exploring emergent phenomena in kagome materials.
