It’s not possible to physically travel to the middle of the Earth as it’s not a tangible destination and is located deep within the Earth’s mantle, which is several thousands of kilometers below the surface.
The idea of a “central” point or “center” of the Earth has been popularized in works of fiction such as Jules Verne’s “Journey to the Center of the Earth,” but in reality, the Earth does not have a defined center like a hollow sphere. Instead, it is a solid sphere with a dense metallic core surrounded by a rocky mantle and a thin outer layer of the crust.
Even if we could travel to the center of the Earth, the conditions there would be extremely hostile to human life, with extremely high temperatures and pressures. So, in practical terms, it is not possible to travel to the center of the Earth.