A whimsical bridge adorned with decorative dragons.

Colorful power station with a chimney equipped with a gallery for exhaust monitoring equipment.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

This 135-year-old weather station studied the effects of the climate on human health.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

A well-worshipped shrine to the Virgin Mary nestled inside the last of Zagreb’s historic gates.

This boat represents the promise of undiscovered territory, a dream of hope, and progress and freedom for Iceland.

The tallest dam in Montana and top 10 in the country.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

Get in line for Lisbon’s most famous sandwich.

Sip cherry liqueur at a bar dating back to 1840.

Step back in time at this 19th-century kiosk.

The world's oldest bookshop still in operation.

The rocks in this arid basin leave trails of movement behind them.

The world's largest wooden structure.

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

Drink the 'Blood of Christ' in this Roman Catholic fever dream.

The ruins of a 2,000-year-old Roman fishing village perched on one of the best beaches in Spain.

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

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

At this faithfully preserved medina off the Moroccan tourist circuit you can walk through six centuries of history in one day.

Reaching this rock formation involves a hike through rocky rapids and springs where wild turtles reproduce.

Founded as a refugee camp, now a popular tourist spot.

One of the few places to grab a beer in Fez is a former British consulate.