# William Rockefeller Mausoleum > Massive stone structure atop the highest hill offers impressive architecture and stunning Hudson River views. Grounds feature a peaceful, well-maintained setting with a grass oval burial area surrounding the mausoleum. The atmosphere invites quiet reflection amid historical significance. Source: https://www.atly.com/location/WilliamRockefellerMausoleum - Address: Sleepy Hollow, New York, United States - Phone: +19146310081 - Website: http://sleepyhollowcemetery.org/ ## What people say - "The historical sites here offer a peaceful and scenic view." ## Good to know - The cemetery closes pretty early at 4:30 pm. - William Rockefeller's name appears on the northeast cornerstone of the mausoleum. - The mausoleum is a massive stone structure approximately 25 feet on each side. - The grounds are well maintained and provide a peaceful atmosphere. - Records show that 16 family members are buried in the cemetery. ## 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.