But many here worry about losing other, less celebrated buildings, which give context and form to the skyline and the center city.
But Gaudi's most celebrated building is probably the church of the Sagrada Familia.
This iconic and celebrated building has been the home of the majority of live music sessions recorded for the BBC over the last seven...
"Crawley's most celebrated building" has been listed at Grade II* by English Heritage for its architectural and historical importance.
The earliest and most celebrated building on the square is the baroque white-and-azure Winter Palace of Russian tsars (1754-62), which gave the square its name.
Gaud's most celebrated building, the Sagrada Familia church, is a 15-minute walk.
There are delightful nooks and corners about this celebrated building in which lovers can lag behind.
The opera house would be one of the 20th century's most celebrated buildings if Turin wasn't off the beaten tourist track.
The resulting house, Fallingwater, shortly became one of the most celebrated buildings in the history of architecture.
About the building, the Maharishi is reported to have said that, "the walls of this celebrated building"..."in no way enclose his unbounded cosmic awareness".