# HIIT workouts in Denver > You need a high-intensity workout that pushes your limits without wasting a single minute of your time. Source: https://www.atly.com/united-states/colorado/denver/best-hiit ## Places (8) ### 1. Traverse Fitness Gym buzzes with high-energy atmosphere and strong community spirit. HIIT with Adam pushes your limits with intense endurance challenges. Facilities like sauna and cold plunge boost recovery, making it a true human optimization hub. - Address: 2449 S Broadway, Denver, CO 80210, USA - Atly: https://www.atly.com/location/TraverseFitness ### 2. Duality Fitness center shines with colorful lighting and lively music that boost energy. HIIT classes blend strength training and cardio for a tough, balanced workout. Friendly community and puppies in the lobby make every visit welcoming and fun. - Address: 4635 W Colfax Ave, Denver, CO 80204, USA - Atly: https://www.atly.com/location/Duality ### 3. The FIIT co. Gym offers top-tier equipment and an energetic vibe with fun music. Jeff's intense HIIT classes and kettlebell sessions push limits. Community spirit and varied classes make workouts both challenging and welcoming. - Address: 2110 Market St, Denver, CO 80205, USA - Atly: https://www.atly.com/location/The-FIIT-co ### 4. Fit Collective Denver Fitness center shines with sunrise views and a supportive community. Group classes suit all levels with accessible workouts. HIIT sessions are intense and challenging, blending circuit and lifting formats for variety. - Address: 3857 Steele St #1182, Denver, CO 80205, USA - Atly: https://www.atly.com/location/FitCollectiveDenver ### 5. The Gym Colorado Powerlifting gym offers 24/7 access with no wait for equipment. Workouts blend strength training and HIIT programming for a balanced routine. Friendly community creates a welcoming atmosphere for all skill levels. - Address: 10155 E 29th Dr Ste 130, Denver, CO 80238, USA - Atly: https://www.atly.com/location/TheGymColorado ### 6. Fit House Denver Fitness center offers science-driven programs with a supportive community and a welcoming atmosphere. HIIT classes feature kickboxing and strength training in well-equipped spaces. Recovery options include cold plunge and infrared saunas for wellness and injury prevention. - Address: 888 S Jason St, Denver, CO 80223, USA - Atly: https://www.atly.com/location/FitHouseDenver ### 7. Endorphin Broadway Gym features a friendly community and small class sizes that suit all skill levels. Workouts mix cycling, rowing, and body weight moves for a full-body workout. Sessions use HIIT, Tabata, and boot camp styles with weights and bands for high intensity. - Address: 2288 S Broadway, Denver, CO 80210, USA - Atly: https://www.atly.com/location/EndorphinBroadway ### 8. Endorphin City Park Open workout areas and 24-hour access support varied fitness routines. Classes include HIIT, yoga, and boxing, all designed to be challenging yet inclusive. A welcoming community creates a judgment-free zone for all levels. - Address: 3170 E Colfax Ave, Denver, CO 80206, USA - Atly: https://www.atly.com/location/EndorphinCityPark ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.