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

Few other hotels can rival the grandeur of the Castle in the Rockies.

Only hotel where you can legally launder money.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A winding path built in secret on the edge of the continent.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The "Seinfeld" diner.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

A restaurant and observation deck built in a unique broadcasting antenna.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This ironic war memorial thumbs its nose at a campaign of inedible humanitarian aid food products.

A number of craters left by fatal mortar strikes have been filled with red resin to remember those lost during the Siege of Sarajevo.

Oriental bazaar in the heart of Sarajevo.

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

This kitschy tavern is also home to rare early editions of "Treasure Island."

World's largest college campus includes a wildlife sanctuary and a former movie set on more than 28,000 acres.

Incredible miniature towns and buildings created and decorated with thousands of tiny rocks.