LEGO 6494 Magic Mountain Time Lab is a vintage Time Cruisers set from 1996 valued at $345 for new and sealed sets, up 440% from an original retail price of $63.99. Annual appreciation has averaged 4.13% since release. On the used market, values range from $102 to $138 based on condition. Secondary market prices for new and sealed sets typically fall between $319 and $397.
LEGO 6494 Magic Mountain Time Lab is a Time Cruisers set released in 1996, containing 504 pieces and 4 minifigures. The build depicts Dr. Cyber and Timmy’s mountaintop laboratory with a hinged, rock-formed central section, expanding side modules, and Technic-driven functions that power a spinning chair and spiral. Features include a detachable flying room with rocket flames, a neon orange greenhouse with hexagonal windows, a rotating and elevating “death ray” using transparent neon green elements, a jail cell, and assorted time-travel equipment. The set is also known as Mystic Mountain Time Lab and Time Cruiser Flybo 2025, and it includes a skeleton, a monkey, and a small buildable robot using a Spyrius robot head.
A new and sealed Magic Mountain Time Lab is currently valued at around $345, with annual growth of approximately 4%. The average used price is $115 for those in good overall condition. The 4 included minifigs account for approximately 16% of the set's total value. New and sealed listings currently range from $325 to $450.