Olfactory delights in San Francisco's Botanical Gardens.

Step into a pastel time capsule where candy is truly dandy.

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

Former meatpacking facility turned vertical farm and sustainable business complex.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

An eclectic trailer park retreat in the middle of the California desert.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

Explore a misty river canyon from a metal bridge system.

Mysterious rocks that ring musically when struck.

The world's only museum devoted to the wonders of fluorescence.

Deep underground, the rusting remains of a German water pumping station from World War II.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Take an underground boat ride through a former hydraulic raceway that was built in the late 19th century.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

Wooden pathways run through this rocky landscape, which legend says was created when a dwarven king pulled down his own castle to stop raiding giants.

The Twisted Trees of Alticane are an unnerving grove of Quaking Aspen, apparently mutated from a single source, giving them a twisted and unnatural appearance.

Where America's first doomsday cult awaited the end of the world.

Every weekend, the parking lot of this Buddhist temple turns into a Thai street-food paradise.

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.