The Obscura team takes their business to Chicago when a world-class collector requests death-related items. The team soon finds a Second City filled with cadaver tools, off-the-wall wildlife blood and head-splitting sideshow acts.

A British customer tries selling Ryan a kettle that definitely doesn't pour tea. Then an artist enlists Evan to find medical instruments for his insane mechanical sculptures and Mike and Ryan encounter an elephant in the room.

A customer asks Mike and Evan to breath life into his creepy 100-year-old automaton, and Ryan meets an artist needing disgusting props. Later a man who chased Mike with a chainsaw reappears and wants something from him and Ryan.

At Obscura Antiques & Oddities, Mike encounters a singing siren hunting for something of the sea variety & Ryan takes on a huge challenge, articulating a full-size skeleton. Then a surprise visit by Gwar may lead to a purchase of a one eyed creature.

An explosion rocks the shop when Mike Sullivan gets his hands on an old detonator. Then Sean Lennon contracts Ryan to articulate the skeleton of a chimera, and Mike and Evan get an extreme dose of oxygen therapy.

Some of the world's most incredible engineering projects are now deserted. Revisit a Soviet megastructure, a massive Nazi brainwashing complex, and a dangerous desert pass. How were they built? Why were they mysteriously abandoned?

Some of the world's most incredible engineering projects are now deserted. Explore a ghost town that was once a dangerous industrial hellscape, a giant warship at the bottom of the ocean, and a top secret relic from the Cold War.

Some of the world's most incredible engineering is now deserted. Explore what happened to the town located outside of Chernobyl on the eve of disaster, a fleet of ghost ships, and a dangerous mountain road that changed history.

Some of the most incredible engineering projects, now deserted. Explore what happened to a military site that was once a hotbed for nuclear testing, a top secret airbase hidden inside a mountain, and an otherworldly power plant.

Some of the world's most incredible engineering projects are now deserted. See what happened to a classified Soviet machine built to prevent nuclear war, a top secret Nazi facility, and a strange tower that left an enduring legacy.

Some of the world's most amazing engineering projects are now deserted. Explore what happened to a cutting-edge research center built by a visionary genius, an ambitious Nazi project that met a sinister end, and a Cold War relic that changed history.

A strange Cuban prison, an eerie escape route built for Armageddon, and an underwater marvel that changed history are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A mysterious American pyramid built out of Cold War paranoia, a haunted prison, and a cluster of structures in the Atlantic are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

Traces of a Russian hole to hell in the Arctic, a military base in America's wild west, and a strange looming tower are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A secret Russian military base in the Gobi Desert, a strange complex in an American wasteland, and a relic high atop a mountain are mysterious deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.

A secret structure on a sinister mountain, an industrial compound swallowed by a forest, and a mysterious run in a sand dune are strange deserted engineering projects, and new discoveries reveal how they were built and why they were abandoned.