I've traveled to all 50 US states. Here are 8 of the most unique places I've visited.

In my eyes, the first official US National Park is still one of the most unique places in the country.

Yellowstone National Park, located in Wyoming, Montana, and Idaho, is known for being home to over 10,000 hydrothermal features.

Visiting the park truly feels like stepping onto another planet.

From the iconic Old Faithful geyser erupting roughly 20 times a day to colorful hot springs like Grand Prismatic and mud pots bubbling with otherworldly energy — it's a place travelers must see to believe.

Oracle, Arizona, isn't necessarily a unique destination in itself, but the manufactured structure that exists there is.

Biosphere 2 is a three-acre closed-ecological system initially designed to study human life in an autonomous environment.

Complete with a tropical rainforest, ocean, wetlands, grassland, and fog desert, Biosphere 2 is like a miniature version of Earth under a giant glass dome.

The facility initially made headlines in the '90s with its two missions that saw crews living inside Biosphere 2 to study human survivability in a closed environment.

Now focused on research, visitors can tour the facility and explore the biomes in an experience unlike any other.

Although Utah has five major national parks, one stands out to me as the most distinct: Bryce Canyon National Park.

This park is renowned for its hoodoos, which are tall, thin, rock formations sculpted by wind and water erosion over millions of years.

But what makes Bryce Canyon genuinely unique is that it has the highest concentration of hoodoos in the world, creating a mesmerizing landscape unlike anywhere else I've visited.

Located along the Maryland and Virginia coasts, Assateague Island may seem like an average barrier island at first glance. However, there's something that makes it entirely unique — a herd of feral horses who roam freely over the island's dunes.

According to legend, these beautiful horses are descended from Spanish horses who were shipwrecked centuries ago.

Whether true or not, the horses are a breathtaking addition to the pristine, undeveloped ecosystem on Assateague Island.

It's astonishing to see Wyoming's Devils Tower (also known as Bear Lodge) come into view abruptly from the surrounding plains.

As the first National Monument in the country, the tower is a mesmerizing spectacle that's also sacred to many Native American tribes.

Measuring 867 feet from base to summit, Devils Tower feels both entirely out of place and perfectly situated in the stunning Black Hills of Wyoming.

As a frequent visitor to Northern New Mexico, I could likely make the case that much of the state is unique compared to other US destinations. However, one place that stands out in particular is Chimayo, New Mexico.

One of my favorite places to visit in the city is El Santuario de Chimayo. This Catholic church is a National Historic Landmark and a vibrant pilgrimage site that attracts about 300,000 visitors annually.

At over 200 years old, it's unlike any place I've seen in the US. During Holy Week, pilgrims will walk for miles to reach the church and the dirt underneath, which is believed to be healing.

The grounds are open for anyone to visit, with shops clustered around with art and artifacts.

Although Joshua trees can be found in other parts of the Mojave Desert, California's Joshua Tree National Park offers a truly unique combination of memorable succulents and rock formations.

The park is the definition of otherwordly, offering a variety of plants and wildlife that make Joshua Tree one of a kind.

Visitors can hike, bird watch, climb, or stargaze at this gem in the California desert.

Great Sand Dunes National Park in Southern Colorado is home to North America's tallest sand dunes. Still, that alone isn't what makes this such a unique part of the country.

The contrast between the towering dunes and the majestic Sangre de Cristo Mountains surrounding them turns an otherwise beautiful natural wonder into a complete otherworldly gem.

Visitors can hike or sled on the dunes for an outdoor adventure like no other.