# Judy & Stanley Frankel Detroit Observatory at University of Michigan in Ann Arbor > Historic observatory houses one of the oldest telescopes in North America, offering free guided tours that explain its significance. The atmosphere suits quiet visits, attracting families and couples alike. Knowledgeable guides share detailed history, making it a hidden gem for astronomy enthusiasts. Source: https://www.atly.com/location/Judy-Stanley-Frankel-Detroit-Observatory-at-University-of-Michigan-in-Ann-Arbor - Address: entrance on, 1398 E Ann St, Observatory St, Ann Arbor, MI, United States - Phone: +17347632230 - Website: https://detroitobservatory.umich.edu/ ## What people say - "This historic observatory is a must-visit place." ## Good to know - Free tours are available every Friday evening, weather permitting. - The observatory hosts viewings on Friday nights, except in August when it's closed. - The mid-autumn festival event occurs annually at the observatory. - Expect a crowd during special events like the mid-autumn festival. - Parking is available nearby, but it can fill up quickly during events. ## 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.