# Underground Fitness > Underground gym features vintage equipment and a unique underground layout with boxing gear and a pendulum squat machine. Atmosphere stays calm and focused, with a motivating community that supports each other. Open 24 hours, it offers free tanning and maintains a clean, no-frills space. Source: https://www.atly.com/location/UndergroundFitness - Address: 473 Hope St, Stamford, Connecticut, United States - Phone: +12035693640 - Website: http://undergroundfitnessct.com/ ## What it is good for - Affordable — 10/10 - Comfortable — 10/10 - Local Spot — 10/10 - Gyms — 9.8/10 - Late Night Spot — 9.5/10 - Weight Lifting Gym — 8.1/10 ## What people say - "I considered it the best gym I have ever been to." - "This late night spot is open 24 hours, making it super convenient." - "I felt so comfortable and welcomed by the staff here." ## Good to know - The gym is open 24 hours a day for members. - Expect a clean environment with well-maintained equipment. - No complicated contracts are required for membership. - Members rarely have to wait for machines during peak hours. - Group classes are offered regularly for all skill levels. ## 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.