- Title: Unexplained Sounds
- Description: About.com page gathers together information about mysterious booms, persistent hums, and underground rumblings that defy explanation. Includes audio clips.
- Category: Alternative Science: Anomalous Sounds
- Pagerank: 5
- ID: 593
- Date Added: November 26, 2007 03:27:23 AM
- Number Hits: 1
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