Celadon City

Celadon City (タマムシシティ Tamamushi City) is a city in central Kanto. Erika is the Gym Leader here. Eusine also resides in Celadon City. Places of interest include the Rocket Game Corner, the Celadon Department Store, and the Celadon hotel. It is one of the biggest cities in the region, second only to Saffron City in the east. The city has two entrances, one from the east via Route 7, and one west via Route 16.

Celadon Mansion
Next to the city's Pokémon Center is the Celadon Mansion. In an act of breaking the fourth wall, the game developers also work there. They still hang out there in Generation II / IV.

Celadon Department Store
The Celadon Department Store is the largest building in the city, as well as the biggest shop. Its located in the north west corner of the city.

Rocket Game Corner
Southern part of the the city caters to travelers and tourists. in addition to a hotel and a restaurant, the Game Corner is a popular spot.

Hotel
The Celadon Hotel is famous for containing one of the most well-known Pokémon Red and Blue bugs: the invisible PC. The mysterious computer is located a space below the rightmost part of the hotel desk. If the player was to take one step above the plants and press A, the PC would be activated. The PC can be used and usual transactions can be made. The reason for this glitch is because the hotel's layout is similar to one of a Pokémon Center, and the cause of the invisibility of the PC is probably a bug.