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

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

Head past the aisles of tropical fruit and imported candy at this bodega to discover a hidden, weekends-only taco stand.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

This Japanese treats shop may have been the first business to mass-produce fortune cookies in the United States.

More than five miles of underground passageways.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Seller of surplus nuclear research materials.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

"I did this all while you were watching TV."