Places Ancientproof Wants to Go

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

The world's longest tunnel with an undersea section.

This Gothic castle-like portal is a testament to the amazing craftsmanship of the navvies who built the railway tunnel.

This 'Murder House' grand mansion has starred in everything from Bones to Buffy.

This glamorous old building is said to have inspired the Tower of Terror.

A look into the Church of Scientology's deeply unfavorable view of psychiatry.

Left untouched since a double murder-suicide in the 1960s, Los Feliz murder mansion remains a neighborhood mystery.

The legendary building that needed ghostly approval before being built.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

A psychedelic labyrinth on the San Francisco bay.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A huge musical instrument played by the ocean.

A creepy steel gremlin has protected the Bay Bridge since 1989.

The Internet Age began with a transmission from this biker bar.

This eagle-topped spire remembers the military commander who snatched up California for the United States.

The stately birthplace of California's statehood.

The first safe in this California town had to hold all the gold.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

A lonely monument to the original Silicon Valley tech campus.

Subterranean house made out of a grain silo, located in the Santa Cruz Mountains.

This scenic gorge is named after one of the most famous Bigfoot attacks in pseudohistory.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

A library of only unpublished manuscripts.