The kings of the Ice Age...

Roughly the mass of a modern African elephant, the woolly mammoth evolved some 400,000 years ago in Siberia from the steppe mammoth widespread on that continent, and ultimately spread westward into Europe and eastward into North America via the Beringian land bridge that once connected modern-day Russia and Alaska.

After disappearing from continental ranges roughly 10,000 years ago, small, isolated populations of woolly mammoth survived on Alaska's St. Paul Island until about 5,600 years ago and on Russia's Wrangel Island until perhaps 4,000 years ago. All of these pockets eventually died out due to the lack of genetic diversity that comes from metropolitan interactions with larger populations.

This specimen is a fragment of a woolly mammoth muscle tissue, radiocarbon dated to 19,551 years old. The specimen comes from a well-preserved wooly mammoth leg discovered near the Indigirka River in Siberia, Russia.

Take a trip the Moon with Apollo 11 Kapton Foil

The Apollo program was conceived during President Dwight D. Eisenhower's administration and later dedicated to President John F. Kennedy's goal of "landing a man on the Moon and returning him safely to the Earth" within a decade. On July 20, 1969, NASA fulfilled the mission when Neil Armstrong and Buzz Aldrin became the first humans to land on the Moon.

Piloted by astronaut Michael Collins, Command Module Columbia orbited the Moon while fellow astronauts Neil Armstrong and Buzz Aldrin explored the surface. The craft carried all three astronauts safely back to Earth, splashing down in the Pacific Ocean on July 24, 1969.

This specimen is an actual, mission-flown fragment of Kapton foil from the Apollo 11 Command Module Columbia. This material helped protect Apollo astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins on their journey from Earth to the Moon and back. Salvaged after splashdown, this is a unique collectible from one of the greatest achievements in human history.

It's time to rock and roll with the Beatles...

Before the Beatles played for millions of viewers on the Ed Sullivan Show, the Lads from Liverpool put in thousands of hours in clubs and lounges across the UK, Germany, Sweden, and France. Yet few venues can be so closely associated with the earliest days of the Beatles as the original Cavern Club in Liverpool, England.

This specimen is a piece of brick from the Cavern Club, sold at auction the 1970s after the original club was demolished. That means that the sound of the first 1961 Beatles performance passed through these specimens!