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

A Buddhist temple to honor insects that died for science.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

An unusual round church in London with a Templar past.

The beams of the New College, Oxford dining hall come with an amazing story.

The sign at the garden gate reads: “These Plants Can Kill.”

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

Macabre astrological automaton clock dating to the late 1400s.

A "miracle" that seems to produce more holy fistfights than holy revelations.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The bomb-ravaged remains of of a colossal Neptune.