The Great Tang Empire always managed to come up with something bizarre and extraordinary, like the way they erected an absurdly tall spire in the very center of the city for reasons unknown.
This spire, near its tip, also had a huge circular dish, which suddenly infused the entire city with an exotic, magical air.
At first, no one knew what this structure was meant to do; in fact, many believed it was just a whimsical architectural marvel created on a whim by His Majesty The Emperor.
Anyway, the people of Chang'an were no longer surprised by such landmark buildings; at first, they marveled at twenty-story buildings, but now the sight of a 200-meter-tall structure left them completely unfazed.
Yes, this thing was a television tower, or a "signal tower" used to transmit television signals before the advent of cable TV.
To cover a larger and wider area, it had to be built sufficiently tall and equipped with many devices atop.