Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

From lefty Jewish gathering site to hip cultural site in just 80 years.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Jumping-off point for a climb up Mt. Everest is the most dangerous airport in the world.

Last stop before the top of the highest peak in the world.

One of the largest Buddhist stupas in the world keeps an eye out in every direction.

Sacred Buddhist home of some spiritual monkeys.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

Northern Ireland's Brobdingnagian stepping stones.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

The largest greenhouse in the world is home to over one million types of plants.

Eat the ultimate iteration of Portugal's most beloved pastry.

This fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

Breathtaking and huge 430 year old maps of Italy.

A reproduction of earth's many biomes.

Sniff the Titan Arum's rotting flesh.

Elevated freight railway turned wildly successful urban park.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Rejoice at Amsterdam's ‘pop temple,’ a former church reborn as a raucous music venue.

Established in 1638 to battle the Black Death, this botanical garden is a treasure trove of rare flora.

A whimsical bridge adorned with decorative dragons.

A growing popular hipster market with over 100 local specialties and live music.

The village where the park and museum are located is also the third-biggest hatchery of dinosaurs discovered.