A semi-scholarly approach to sex.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

Elevated freight railway turned wildly successful urban park.

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

Try not to get slimed in Tribeca.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A terrific purveyor of natural history objects and curios.

A crumbling hospital from the 1850s on Roosevelt Island.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Seattle's own bad art museum located inside Cafe Racer.

A walk through the historic city center, under the streets of Seattle.

The sculpture shows a water rat turning the world upside-down, landing an elephant on its head.

Victoria's largest salt lake is a favorite haunt for photographers and stargazers.

The world's "leaniest" tower encourages you to test the gravity of its situation.

The 25-million-year-old cavities have perplexed people for decades.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.

When you get to Magnetic Hill park near the sign, put your vehicle in neutral gear, and watch it roll uphill...

One of the best beaches in the entire world.

An abandoned jewel of a ballroom on the top floor of Australia’s busiest rail station echoes with the sounds of a bygone era.

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

Futuristic apartment blocks are the backdrop for Montreal surfers hangin' ten on the Habitat '67 standing wave.

Icelandic settlement in Manitoba established in 1875.