However his most important work, the great Kossuth Memorial in Budapest proved to be a failure.
Horvay won a competition in 1906 with his model for the great Kossuth Memorial in Budapest.
The sculpture group depicting the members of the first parliamentary cabinet of Hungary was inaugurated in 1927 after twenty years of work.
The memorial was heavily criticised because of its composition and "melancholic" appearance by the press and the public.
Other works of Horvay are the Kossuth statue in New York (1928), the memorial of Ottó Herman (1930), statue of Géza Gárdonyi (1932) and Ludwig van Beethoven (1932), and the Memorial of Hungarian Doctors (1942).