If you're headed down south this summer, the La Brea Tar Pits observation pit is now open to the public after nearly two decades.  

Since 1913, 5 million fossils have been excavated on the 23 acre property, and the observation pit first opened to the public in 1952. 

Museum officials say the pit closed 20 years ago due to a lack of manpower to safeguard the fossils that potentially could be worth a lot of money.  

A skull of a saber tooth tiger, fossils from a ground sloth and a mastodon are all embedded in tar and can be seen at the museum.