Walk behind a 50-meter-high waterfall.

The spur that wouldn’t die.

This impressive Boston holy house is the American mecca for Christian scientists.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

This abandoned, turn-of-the-century astronomy hub is now the subject of more photographs than it ever took.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

Single runway interrupted by a busy road that cuts across its middle.

The world's most elegant power lines.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

The stones of this formerly witch-obsessed castle were used to build a church.

A small but immensely extravagant palace built by the "Night King."

The fairy tale castle of the "fairy-tale king."

A giant Troll lurks under one of Seattle's oldest bridges.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

Granting the right of way to ships over surface traffic since 1917.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

MIT students continue the legacy of beloved professor "Doc" Edgerton through learning by doing.

Bouncing, delightful, mechanical art at the MIT Museum.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.