Pitch Lake, La Brea, Trinidad

Pitch Lake has fascinated explorers and scientists, as well as attracting tourists, since its discovery (for the Europeans) by Sir Walter Raleigh in 1595. Raleigh himself found immediate use for the asphalt to caulk his ship. Exported asphalt from Pitch Lake was also used to pave the streets of some regions of New York City.
Since its re-discovery, there have been numerous research investigations into the use and chemical composition of this material. Above all, there have been countless theories, postulations, and conclusions as to the size, source, and origin of the asphalt.