Quintana Roo, officially the Free and Sovereign State of Quintana Roo, is a state located on the eastern part of the Yucatán Peninsula in Mexico. It is known for its beautiful coastline along the Caribbean Sea and the Gulf of Mexico, as well as its popular tourist destinations such as the city of Cancún, the islands of Cozumel and Isla Mujeres, and the ancient Maya ruins of Tulum, Xel-Há, and more. The state has a rich history, being part of Yucatán and then becoming a separate territory in 1915 before being granted statehood in 1974.Quintana Roo has experienced rapid development, particularly in the northern part, driven by tourism, while the south maintains a traditional economy focused on forestry and wood extraction. The state's archaeological findings include ancient human remains discovered in submerged caves and sinkholes, with one of the oldest human skeletons found in the Americas.The state's population is growing due to the construction of hotels and the demand for workers, with many migrants coming from neighboring states. However, Quintana Roo is frequently affected by severe hurricanes due to its exposed location, with Hurricane Dean in 2007 being one of the most severe.Overall, Quintana Roo offers a blend of natural beauty, historical significance, and modern development, making it a diverse and fascinating part of Mexico.

Quintana Roo (QR) is a pioneering company in the field of triathlon gear, renowned for creating the first triathlon-specific wetsuit in 1987. Founded by Dan Empfield, a prominent figure in Ironman, the company has continued to innovate and push boundaries in the industry. QR's flagship wetsuit was a game-changer, offering enhanced flexibility and buoyancy tailored for the unique demands of triathlon swimming. They further revolutionized wetsuit design by introducing Yamamoto Rubber #39 and Yamamoto SCS, setting new standards for performance and durability. In addition to wetsuits, QR made significant strides in triathlon-specific bicycles, introducing the groundbreaking Quintana Roo Superform and the Kilo, the first production bicycle made from Easton #7005 aluminum tubeset. Their relentless pursuit of innovation led to the development of aerodynamic components such as the QR Illuminaero fork and the QR Redstone, considered the first triathlon "superbike". Over the years, QR has continued to push the boundaries of design and aerodynamics, introducing cutting-edge bikes like the Lucero, Seduza, and the CD0.1 with unique features and advanced technologies. The brand's commitment to innovation and performance has solidified its position as a leader in the triathlon industry.

The Quintana Roo Speleological Survey (QRSS) was established in 1990 to explore, survey, and map the underwater and dry caves and cenotes of Quintana Roo, Mexico. This initiative is supported by the National Speleological Society and serves as a vital data repository for the explored sites within the state of Quintana Roo. As of February 2011, the QRSS had documented 208 underwater cave systems with a total surveyed length of 910.4 kilometers (565.7 mi) and 50 caves above the water table with a total length of 41.8 kilometers (26.0 mi). The QRSS focuses on the geographical area of Quintana Roo, encompassing the entire state along the Caribbean coast of the Yucatán Peninsula, from Cancun to the capital of Chetumal near the Belize border. The documentation provided by the QRSS is crucial for regional and site-specific planning and management, particularly in the face of increasing environmental stresses due to urban and tourism-based development in the Riviera Maya and the Costa Maya. Certified cave divers can access information packages on underwater survey and cartography opportunities in Quintana Roo, further contributing to the preservation and sustainable management of this unique natural environment. For those interested in exploring further, the Sistema Sac Actun and Sistema Dos Ojos—underwater cave systems in Quintana Roo—are additional points of interest.

Quintana Square, also known as Plaza de la Quintana, is the principal square in Santiago de Compostela, Galicia, Spain, situated at the convergence of the south facade of Santiago de Compostela Cathedral, Casa da Parra, Monastery of Saint Pelagius of Antealtares, and Casa da Conga. The square's name "quintana" harkens back to its origins as a Roman camp street, separating the fifth and sixth maniples and housing a marketplace. Initially a cemetery, the square was developed in 1611, transforming the medieval Quintana de Mortos into a public space. Divided by a staircase, it encompasses the "Quintana de Vivos" and the "Quintana de Mortos," with pilgrims crossing it during Jacobean Holy Years to reach the basilica through the Holy Door. Quintana Square hosts various events and gatherings, including Galician Literature Day celebrations, National Day of Galicia, demonstrations, and musical performances. Additionally, it commemorates the Literary Battalion's role during the Spanish War of Independence. The plaza is a vital public space with historical significance and cultural relevance, offering a unique blend of history, spirituality, and community events.

Located in the province of Badajoz, Extremadura, Spain, Quintana de la Serena is a municipality with a population of 5347 inhabitants as per the 2005 census (INE). The area is renowned for its abundant granite reserves, with quarries serving as the primary economic driver. Quintana de la Serena offers a picturesque landscape and a rich cultural heritage, making it an attractive destination for visitors and residents alike. For those interested in exploring the region further, Quintana de la Serena is worth considering as part of a tour of the municipalities in Badajoz. Whether one is drawn to its natural beauty, thriving economy, or historical significance, Quintana de la Serena has much to offer.