A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

Former meatpacking facility turned vertical farm and sustainable business complex.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This historic hotel invented the chocolate brownie.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Nonprofit art center that promotes outsider, intuitive, and self-taught art.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A speakeasy takes on Chicago's drinking culture.

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

This shop for all your super spy needs hides an educational secret.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The oldest landmark of Toronto is a testament to shifting sands.

This Hindu temple is an architectural marvel designed and built according to ancient Indian principles.

This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

These strikingly barren, rolling red hills were caused by bad farming practices.

Possibly the world's largest coin stands just outside of a Canadian science center.

This natural sea cave hides a small wonderland of natural turquoise beauty.

Over 400,000 birds spend their summers nesting on this small Arctic island.

This igloo-shaped landmark in Iqaluit serves as the seat of the Diocese of the Arctic.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.

Looking like nothing more than a cartoon deserted island, this tiny sandbar is home only to a single umbrella.

Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.