Home to three historic ships from the age of Vikings.

Walk behind a 50-meter-high waterfall.

Longest road tunnel in the world features an air treatment plant and the illusion of daylight.

A thin pane of glass keeps visitors from sliding off this futuristic skywalk.

Walk 2,300 feet above the ground on the "Troll's Tongue."

This historic stone bridge has an entire neighborhood clinging to its sides.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

137 graves holding New England's earliest residents.

A few stone foundations and an old graveyard are all that is left of this once thriving settlement in the wilds of Connecticut.

Made of bronze and wearing a blue gown, this lady sat in the same location in the Yantic Cemetery for more than 119 years.

Natural history museum displaying a famous taxidermied St. Bernard.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Lucerne's central prison was converted into a tourist hotel with a bare minimum of changes.