Ah, Valencia, Spain! A city full of sunshine, paella, and oranges. It's one of the largest and most popular cities in Spain, so there are plenty of well-known attractions for visitors to enjoy, but what about the lesser-known gems? As a seasoned detective and a lover of all things Valencia, I am happy to share some of the most unknown tourist attractions in this sunny coastal city.

First on the list is the Silk Exchange, or La Lonja de la Seda. This stunning Gothic building dates back to the 15th century and was once the centre of Valencia's silk trade. It is now a UNESCO World Heritage Site and a fascinating example of the city's rich history. While it may not be as well-known as the City of Arts and Sciences, La Lonja de la Seda is a must-visit for anyone interested in history, architecture, or both.

Next up, we have the Albufera Natural Park. Located just a few kilometres south of the city, this wetland reserve is a true hidden gem. With over 21,000 hectares of protected land, the park is home to a wide variety of flora and fauna, including rare bird species like the purple heron and the osprey. Visitors can take a boat tour of the park or explore the walking and cycling trails, making it a perfect day trip for nature lovers.

For those looking for a more spiritual experience, the Santo Cáliz Cathedral Museum is a must-visit. The museum is home to the Holy Grail, the cup used by Jesus Christ at the Last Supper. The artefact is kept in a specially designed chapel in the cathedral, and visitors can learn about its history and significance. It's not every day that you get to see the Holy Grail, so this is truly a unique and special experience.

Finally, we have the Mercado de Colón. While it may not be completely unknown, it is often overlooked in favour of the Central Market. However, the Mercado de Colón is a beautiful Modernist building that was once a bustling market but has since been transformed into a space for culture and events. Visitors can enjoy a coffee or a meal in one of the many restaurants or cafés, browse the artisanal shops, or simply admire the stunning architecture.

These are just a few of the many unknown tourist attractions in Valencia. From the stunning Silk Exchange to the peaceful Albufera Natural Park, Valencia has something for everyone. So the next time you visit this sunny city, be sure to step off the beaten path and explore some of the hidden gems that make Valencia such a special place.