Paula Jean Welden vanished into nowhere on December 1, 1946, in Bennington Vermont. This is a mystery that would haunt the sleepy town forever.

This fossilized damselfly trapped in amber tells us that even 100 million years ago it was helpful to have attractive legs to charm the opposite sex.

Humans have engineered many trains to fit into modern cities, but in doing so we’ve built some weird systems. These are 5 strange trains around the world.

Humans have had an attraction to body odor and pheromones for ages. Are we missing out on the sexiness of natural scent by bathing so often?

The ancient Bo people of China used sheer cliffs as graveyards, but how they placed the hanging coffins in such dangerous places is a mystery.

Once thought to be purely Celtic, the Gundestrup cauldron is a multi-cultural artifact that originated in the Balkans before going to Denmark.

Native Americans indicate the ancient Blythe Intaglios are gods and figures of creation carved into California’s desert to honor them.

The Plain of Jars is an ancient cemetery in Northern Laos with thousands of open-air vessels and ground burial pits with human remains.