Here is a list of some trusted Bitcoin marketplaces that were well-known and widely used around the world:
1. Coinbase: Coinbase is a popular and trusted cryptocurrency exchange based in the United States. It is known for its user-friendly interface and high security standards.
2. Binance: Binance is one of the largest cryptocurrency exchanges globally, offering a wide range of cryptocurrencies for trading. It is known for its low trading fees and extensive selection of trading pairs.
3. Kraken: Kraken is a well-established cryptocurrency exchange known for its security features and regulatory compliance. It offers a variety of cryptocurrencies for trading.
4. Bitstamp: Bitstamp is one of the oldest cryptocurrency exchanges in the industry and has a reputation for reliability and security. It is based in Luxembourg and offers Bitcoin trading pairs.
5. Gemini: Gemini is a US-based cryptocurrency exchange founded by the Winklevoss twins. It is known for its focus on security and regulatory compliance.
6. Bitfinex: Bitfinex is a cryptocurrency exchange that offers advanced trading features and a wide range of cryptocurrency trading pairs. It is known for its liquidity and trading volume.
7. Huobi: Huobi is a global cryptocurrency exchange that offers a variety of cryptocurrencies for trading. It is popular in Asian markets and has a strong reputation in the industry.
Please note that the cryptocurrency landscape is constantly evolving, and new exchanges may have emerged since my last update. It's always a good idea to do your own research and due diligence before using any cryptocurrency exchange.