Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

A unique set of caves that spits waves back out into the ocean.

An abandoned town is hidden in Great Smoky Mountains National Park.

This North Carolina museum is keeping the pinball craze alive, with a little Space Invaders on the side.

Classy up your Big Mac with bow-tied servers and chandeliers at the world's fanciest McDonald's.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

An ode to "The Queen of Appalachia."

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

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

This ambitious attraction was the brain child of a lake resort impresario, and built by the WPA.

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The only road through the heart of Glacier National Park.

The first declared National Monument in the United States.

Spectacular views await visitors to this lake.

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

Native Americans built this circle of stones, which was used to predict astronomical events.

A collection of human remains, animal body parts, and other macabre curiosities all legally for sale.

A miniature representation of Canadian cities and landmarks in incredible—and sometimes hilarious—detail.

One of the largest underground systems runs under Canada's largest urban center.

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

A swaggering, monumental souvenir of the most extravagant party Montreal’s ever thrown.

This 1967 experiment in modular architecture was designed to be a new model for urban living.