Note from 10Best: Someday, we'll all be ready to pack our suitcases again and head out on our next adventures. In the meantime, we'll keep supporting the places that inspire us. Please check individual hotel websites for the latest updates.

Situated on a mile of sandy beach just outside Portland, Maine, the Inn by the Sea features 61 rooms, suites and cottages for a relaxing coastal escape. Days begin with early morning yoga and garden tours, while evenings finish with beachfront sunsets and nightly fire pits. The full-service spa has earned a LEED Silver certification. Photo courtesy of Preferred Hotels & Resorts

Situated on the East River waterfront with stellar views of the Manhattan skyline, the LEED Gold-certified 1 Hotel Brooklyn Bridge uses native greenery and reclaimed materials to bring a touch of nature to Brooklyn. The property includes 195 guest rooms, a rooftop bar with a heated plunge pool, a neighborhood cafe and a spa with nine treatment rooms. Photo courtesy of 1 Hotel Brooklyn Bridge

Bardessono is one of only a few LEED Platinum certified hotels in the U.S., and their commitment to sustainability (built from salvaged wood and non-toxic materials, organic linen, cleaning and spa products) is organically incorporated into their spot-on design. The location in downtown Yountville is the real attraction of this hotel. Bardessono is within walking distance of half a dozen vineyards open for wine tasting, as well as some of the area's most acclaimed restaurants. Photo courtesy of Bardessono Hotel and Spa

True to its name, the LEED Gold certified Nature Inn at Bald Eagle demonstrates environmental stewardship through habitat restoration, water-efficient and native landscaping, rainwater harvesting, solar-thermal hot water and use of Green Seal Certified cleaning products throughout the hotel. Guests of this eco-lodge enjoy easy access to the trails of Bald Eagle State Park. Photo courtesy of Nature Inn at Bald Eagle

This Miami hotel enacted an “Inspired by Nature” environmental program in 2010 and has enacted many green initiatives ever since. The property is completely free of disposable plastics, while low-flow bathroom fixtures and UV windows conserve natural resources. The resort hosts regular beach cleanups, where guests can volunteer to help protect the local environment and wildlife. Photo courtesy of Preferred Hotels & Resorts

The Hotel Andaluz in Albuquerque had earned LEED Gold Certification as one of the most sustainable historic hotels in the nation. A rooftop solar system heats water for the restaurant and laundry, while a motion-activated energy management system switches to energy saving mode when guests are out of their rooms. Most furniture and bathroom accessories are made from bamboo or rubber wood. Photo courtesy of Hotel Andaluz

Virgin Hotels Chicago brings the variety of luxury to the Windy City you'd expect from a Richard Branson endeavor. The LEED Gold certified hotel uses green housekeeping practices, maintains a hotel-wide recycling program, promotes walking tourism in the Windy City and was built with green roofing material for more efficient storm water management. Photo courtesy of Virgin Hotels Chicago

This LEED Silver property in Miami offers 600 feet of Atlantic Ocean beach, plus earth friendly extras, like a electric house car, in-room reclaimed chalkboards, 100-percent natural bath products and monthly candlelit Dark Sky events in the lobby to raise awareness of global brightening. Photo courtesy of 1 Hotel South Beach

The Ritz-Carlton, Charlotte, a LEED Gold certified property, offers luxury and sophistication with sustainability laced throughout. The hotel opened in 2009 and became the first Ritz-Carlton in the world to attain Gold status. Back-of-the-house conservation efforts mean the hotel uses about 30 percent less energy than comparable conventional hotels. Photo courtesy of The Ritz-Carlton, Charlotte

The LEED Gold certified hotel is 30 percent more energy efficient than similar traditional properties, thanks to improved insulation, high-performance windows and an energy management system. All cleaning products are non-toxic and hypoallergenic, and shampoo and conditioner bottles get cleaned and resealed to limit waste. Photo courtesy of Viceroy Snowmass

As Kermit the Frog once said, "It's not easy being green," but these 10 U.S. hotels have gone above and beyond to promote environmental sustainability. Along the way, they've earned certification in Leadership in Energy and Environmental Design (LEED) by the U.S. Green Building Council or other industry awards in sustainability.

The top 10 winners in the category Best Eco-Friendly Hotel are as follows:

Viceroy Snowmass - Snowmass Village, Colo. The Ritz-Carlton, Charlotte - Charlotte 1 Hotel South Beach - Miami Virgin Hotels Chicago - Chicago Hotel Andaluz - Albuquerque The Palms Hotel & Spa - Miami Nature Inn at Bald Eagle - Howard, Penn. Bardessono Hotel and Spa - Yountville, Calif. 1 Hotel Brooklyn Bridge - Brooklyn, N.Y. Inn by the Sea - Cape Elizabeth, Maine

A panel of experts partnered with 10Best editors to pick the initial nominees, and the top 10 winners were determined by popular vote.

Congratulations to all these winning hotels!