America's post-nuclear-attack chambers of Congress.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

The world's largest fully steerable radio telescope.

The world's largest private aircraft collection.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.

A mysterious spirit totem at the edge of Navajo lands.

This historic national park is covered in the stunning ruins of red rock pueblos.

A 131-year-old wunderkammer of Texas history.

A hobby born from insomnia has turned into a hangar full of objects that have been be-buttoned by the Button King.

One man's extraordinary topiary garden in a small South Carolina town.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

Twenty-eight years after this local landmark was washed ashore by hurricane Hugo, it was washed away by hurricane Irma.

An Irish Memorial commemorating those who perished due to potato blight.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

An ancient neolithic tomb that only sees the sun twice a year.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

The uniquely-designed winter home and sculpture studio of Anna and Archer Huntington.

The world's largest fire hydrant is supposedly tornado-proof.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

A massive underwater sinkhole made famous by Jacques Cousteau.