No, there is no hidden 8th gym in Pokémon Diamond, Pearl, and Platinum. These games only have 8 official gyms that players must defeat in order to challenge the Pokémon League. While there are some rumors and myths about hidden gyms in these games, they are not true. Players should focus on defeating the 8 official gyms and progressing through the game's story. **

Some hidden gems in London include the Leighton House Museum, a beautifully preserved Victorian home with stunning Middle Eastern-inspired interiors, and the Hampstead Heath Pergola and Hill Garden, a tranquil and picturesque spot with stunning views of the city. Another hidden gem is the Little Venice area, a peaceful canal network with charming houseboats and waterside cafes. Additionally, the Sir John Soane's Museum, a unique house museum filled with an eclectic collection of art and antiquities, is a must-visit for history and architecture enthusiasts. **

Hidden gems like Kemono Jihen are lesser-known anime series that offer a unique and captivating story, compelling characters, and stunning animation. These hidden gems often fly under the radar but have a dedicated fanbase due to their high-quality storytelling and production. Kemono Jihen, in particular, stands out for its blend of supernatural elements, mystery, and character development, making it a must-watch for fans of the genre. These hidden gems often provide a refreshing and memorable viewing experience for anime enthusiasts looking for something new and different. **

Some short anime hidden gems include "Barakamon," a heartwarming slice-of-life series about a calligrapher finding inspiration in a rural village; "Tatami Galaxy," a unique and visually stunning show about a college student's surreal experiences; and "Anohana: The Flower We Saw That Day," a touching story about a group of friends dealing with grief and guilt. These anime may not be as well-known as some others, but they offer compelling stories and memorable characters that make them worth watching. **

Some hidden gems for the PC include OBS Studio, a free and open-source software for video recording and live streaming; DaVinci Resolve, a powerful video editing software with advanced features; and HandBrake, a tool for converting video files to different formats. These software are not as well-known as some of the more popular options, but they offer high-quality features and functionality for users looking for alternatives. **

Helene Fischer is a German singer known for her pop and schlager music. Some of her popular songs include "Atemlos durch die Nacht," "Herzbeben," "Fehlerfrei," and "Phänomen." Fischer's music is known for its catchy melodies, upbeat rhythms, and powerful vocals, making her a favorite among fans of German pop music. **

Helene Fischer is a German singer known for her powerful vocals and energetic performances. Her songs often feature catchy melodies and uplifting lyrics, making them popular with a wide audience. Some of her most well-known songs include "Atemlos durch die Nacht" and "Herzbeben." Fischer's music has earned her numerous awards and a dedicated fan base both in Germany and internationally. **

One hidden gem that I would recommend is "Hollow Knight," a beautifully crafted indie game with challenging gameplay and a captivating world to explore. Another hidden gem is "Celeste," a platformer with a touching story and tight controls that make for a rewarding experience. Lastly, "Undertale" is a unique RPG that subverts traditional game mechanics and offers players a thought-provoking narrative. **