Surprising discoveries lie just below our feet under the streets of today's greatest cities.

Hunt's first tunnel trips inspired a lifelong fascination with exploring underground worlds, from the derelict subway stations and sewers of New York City to the sacred caves, catacombs, and tombs, from bunkers to ancient underground cities in more than twenty countries around the world. In a narrative spanning continents and epochs, Hunt tracks the origins of life with a team of NASA microbiologists a mile beneath the Black Hills, descends with an...

A collection of poems explores the wonder underground, from animal burrows and subways to caves and magma.

Tunnels allow people to cut through tall mountains or even travel deep underwater. Discover the engineering behind tunnels.

A novel based on a true tale of heroism and invention in the tunnels beneath Lake Erie in 1916. This original graphic novel imagines the lives of blue-collar workers involved in the real-life Lake Erie tunnel disaster of 1916 in Cleveland. Author Scott MacGregor and illustrator Gary Dumm tell the intersecting stories of a brilliant African American inventor, Ben Beltran (based on the real-life Garrett Morgan, Sr.), desperate immigrants tunneling beneath...

In Secrets Underground, history buff Elizabeth MacLeod introduces readers to a fascinating world. Learn about the Civil War secrets carefully concealed in Organ Cave, West Virginia, the top-secret equipment that lies deep below Grand Central Terminal in New York City, the network of tunnels in Moose Jaw, Saskatchewan, that once hid victims of persecution, and much more. MacLeod explains how these lost and hidden subterranean passages, spaces, and...

Describes underground areas including subways, bank vaults, and basement offices as well as the machines used to construct these places, dig tunnels, mine coal, and drill for oil.