Built in 1958, the tower's main sources of income are tourism and antenna leasing. Over 150 million people have visited the tower. Footstone, a four-story building directly under the tower, houses museums, restaurants, and shops. Departing from there, guests can visit two observation decks. The two-story Main Deck (formerly known as the Main Observatory) is at , while the smaller Top Deck (formerly known as the "Special Observatory") reaches a height of . The names were changed following renovation of the top deck in 2018. The tower is repainted every five years, taking a year to complete the process.