Secrets of the Underground
Rob Nelson Bio
Rob and Stefan are on the hunt for a fabled fortune deep in a cavern in the northern California woods.
This Underwater Camera Hunts for Missing Gold
Rob and Stefan search for evidence of the rum-running network reportedly built by the 'Purple Gang' under the Detroit River.
Searching for Booze Smuggling Tunnels Beneath the Detroit River
Rob and Stefan scan the grounds of Nikola Tesla's lab on Long Island with a magnetometer and find some surprising anomolies hidden underground that suggest evidence of tunnels Tesla claimed to have built.
Exploring What Lies Beneath Nikola Tesla's Lab
Rob and Stefan create a 3D map of the Nea Church in Jerusalem's sub-basement in search of King Herod's long-lost temple treasures.
How to Find Long Lost Treasure Under an Ancient Church
Secrets of the underground premieres on Valentine's Day!
Secrets of the Underground Promo
Where did this well known symbol come from?
The Origin of the Infinity Symbol
In order to further explore a cave in San Antonio, Rob Nelson crawls through incredible tight caverns. Don’t worry though, he’s only a little claustrophobic.
Rob Crawls Through Caverns
There’s a mysterious underwater rock circle that supposedly has carvings in it.
Rob's gear malfunctioned underwater.
How Dangerous was the Lake Michigan Dive?
Go with Rob behind the scenes to see where parts of the show are shot!
Secrets of the Underground Set Tour
Gungywamp was one of Rob’s favorite spots during this season of Secrets of the Underground!
Gungywamp May Provide Proof of Europeans in the Americas Before Columbus
The Great Serpent Mound is a 1,348-foot-long prehistoric effigy mound in Ohio. Scientists are sure what it’s purpose was.
What is Buried Under Serpent Mound?
A collection of dinosaur marks can be found near Denver. Some of these markings are believed to be part of a mating ritual that can still be seen in modern bird species.
Dinosaurs Left Mating Ritual Marks in Colorado
Enormous dinosaurs and teeny birds have a lot more in common than you might think!
What do Plovers and Dinosaurs Have in Common?
First, scientists like to date the rock in which the fossil is on. Radiometric dating is a technique used to date materials such as rocks or carbon.
How Do Palenologists Date Fossils?
What is Pi and where did its symbol come from?
Where Did Pi Come From?