I've booked luxury stays around the world. This adults-only hotel in Wyoming, which costs $1,500 a night, was the best by far.

When I landed in Wyoming, I took a cab from Jackson Hole Airport to the top of a winding hill, where Hotel Yellowstone sits on four acres overlooking the Teton Range.

Hotel Yellowstone opened in August for guests aged 21 and up. (Adults between 18 and 20 may stay when checking in with someone 21 or older.)

Its location was carefully selected to provide unobstructed views of the Tetons and Snake River Valley in a calming environment.

It's less than 15 minutes from downtown Jackson, but it feels worlds away from the hustle and bustle.

Hotel Yellowstone was designed to merge the American Western style with modern luxury, according to the company's website.

The lobby had a neutral color palette, with cozy seating, wooden detailing on the ceilings, and wide windows to sit and enjoy the view.

My room keys were made of wood that appeared to match the buildings on the property.

Each room is 600 square feet and includes a private balcony. The main difference between each room is the view.

I booked a Grand Teton Suite, which meant I had unobstructed views of the Teton Range. The room starts at $1,499 a night, though Business Insider received a media rate for the one-night stay.

My room, furnished by Restoration Hardware, had a king-sized bed, two sitting areas, a TV, a fireplace, a full bathroom, and amenities, including an espresso machine and a mini-fridge.

An AntlerWorx floor lamp and white, fluffy chairs gave the room a bit of Western flair in an otherwise modernized, luxury hotel room.

My room had a ton of automatic controls, from mood lighting to sheer and blackout curtains. Each control had a labeled button on the wall to make it easy to navigate.

I could also control these functions from an in-room iPad that operated the TV and room-service needs.

The bathroom felt like a mini spa with heated floors, a rainfall shower head, and a jumbo, free-standing tub with a sliding door. With the door open, I could bathe with a view of the Teton Range.

The bathroom also had towel heaters, robes, a hair dryer, and Byredo toiletries.

At the back of the room, sliding glass doors led to a spacious balcony with a side table between two lounge chairs.

I watched the sunset out here. With no children on the property, it was quiet and calming. I listened to the whispers of the wind through the trees and the whistles of birds flying by as a soothing soundtrack to my evening.

The hotel lobby has an outdoor lounging area with fire pits overlooking the property and surrounding mountains.

The fitness room at Hotel Yellowstone had smart Techno Gym Cardio equipment with virtual classes similar to Peleton. Treadmills and ellipticals were in front of wide windows overlooking the Teton Range.

The Negative Edge Pool was long and shallow. At just 4 feet deep with jets and heating, it could be the ideal place to relax.

A representative of Hotel Yellowstone told BI that the pool and sauna are open 24 hours a day.

The spa at Hotel Yellowstone had an array of treatments, from red light and cold water therapy to massages and cold plunges.

Olivia's is an eclectic restaurant with locally sourced ingredients, a marble bar, cozy seating, and breathtaking views.

I went for dinner and breakfast (breakfast was included) and was surprised by the range of options.

I had what my server suggested for dinner — the house-made bao buns with short ribs, pickles, and candied jalapenos. The buns were soft, the ribs were moist, and the garnishes perfectly balanced the flavors in each bite.

For breakfast, I had steel-cut oats with fruit, nuts, and brown sugar. It was a healthy, hearty boost that helped me start my day off right.

While munching on oats at Oliva's the morning I checked out, I spotted a moose going for a stroll outside my window. I was mesmerized — I'd never seen a moose before.

I excitedly gestured toward my server to show them my discovery, and they told me that the moose was essentially a regular at Hotel Yellowstone. The moose has been seen rolling in the flower beds and swimming in the pond on the hotel's property.

This amazed me. And it made me think that part of the reason the moose feels so comfortable in a shared space with humans is the calming nature of the kid-free hotel.