Harder, Megan

Buried deep beneath the outskirts of the city, the London catacombs are known for being as beautiful as they are eerie. Although they are no longer in use today, these tunnels document an important part of the city's history. Discover the London catacombs, including who was laid to rest there, why they closed, and more.

"Disappearances and other strange phenomena in the Bermuda Triangle have long inspired speculation and theories. Theorists chalk it up to everything from bad weather to time warps. Explore the mysterious history of the Bermuda Triangle"--.

Astronauts live and study on space stations as they orbit Earth. Readers will love learning fascinating details about these structures, from their beginnings to how they might be used in the future.

"Rovers traverse parts of space that people can't easily get to. Readers will love learning about these space machines, from their history to their current missions and where they might go in the future"--Provided by publisher.