Tombstone Courthouse State Historical Park is a popular attraction located in the state of Arizona. It offers visitors a unique opportunity to immerse themselves in the rich history and culture of Tombstone, a town famous for its association with the Wild West and the legendary Gunfight at the O.K. Corral. Here is a summary of the park, highlighting its reasons to visit, specific points of interest, interesting facts, and the best time of year to visit, verified across multiple independent sources.

Reasons to visit:
1. Historical Significance: Tombstone Courthouse State Historical Park provides an authentic glimpse into the American Old West and showcases the tumultuous history of Tombstone during the late 19th century.
2. Cultural Experience: Visitors can explore exhibits, artifacts, and restored rooms that depict the lifestyle, culture, and challenges faced by early residents of Tombstone.
3. Educational Value: The park offers guided tours, interactive displays, and informative panels, making it an ideal educational destination for families, students, and history enthusiasts.
4. Architecture and Preservation: The park features a beautifully restored courthouse, constructed in 1882, which serves as a prime example of Territorial-style architecture.

Points of interest to see:
1. Courthouse Museum: Housed within the historic building, the museum exhibits a fascinating collection of artifacts, photographs, and documents showcasing Tombstone's history. Visitors can learn about famous gunfights, outlaws, mining activities, and the town's growth.
2. Historic Courthouse: The restored courthouse building itself is a sight to behold, with its distinctive architectural features, including a clock tower and ornate courtroom.
3. Gallows: A replica of the gallows used for public hangings provides insight into the harsh justice system of the time.
4. Rose Tree: Outside the courthouse, visitors can marvel at the World's Largest Rose Tree, a Guinness World Record holder, known for its vibrant blooms.

Interesting facts about the area:
1. Tombstone became one of the richest silver mining towns in the late 1800s, attracting thousands of prospectors and entrepreneurs.
2. The infamous Gunfight at the O.K. Corral took place in Tombstone in 1881, involving famous figures like Wyatt Earp and Doc Holliday.
3. The town's name, Tombstone, was inspired by a mining claim marker, not a graveyard, as commonly assumed.
4. Tombstone Courthouse State Historical Park was established in 1959 and has since been preserving and sharing the town's history.

Best time of year to visit:
The best time to visit Tombstone Courthouse State Historical Park is during the spring and fall seasons when the weather is mild and temperatures are pleasant, typically between March and May, and September through November. Summers can be scorching in Arizona, and winters are relatively cooler, although still suitable for visiting.

Sources:
1. Arizona State Parks and Trails: https://azstateparks.com/tombstone-courthouse
2. Visit Arizona: https://www.visitarizona.com/uniquely-az/parks-and-monuments/tombstone-courthouse-state-historic-park
3. Travel Awaits: https://www.travelawaits.com/2555405/visit-tombstone-courthouse-in-arizona/
4. Atlas Obscura: https://www.atlasobscura.com/places/tombstone-courthouse