A former department store turned into a quirky restaurant.

Come for the pizza, stay for a performance on the world's largest theater pipe organ.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

This immigrant bridge once spanned the Thames but is now a fixture of an Arizona city.

An urban laboratory.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

The world's largest rose bush has literally outgrown the pioneer museum it was planted behind.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

A self-built castle made by a mysterious man.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

Shop for books in the New Orleans house where William Faulkner once lived.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

A preserved stretch of ancient fossilized trees with an impressive gem collection to boot.

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Walk over a 150 year old manhole.

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

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

A celebration of capitalism in Midtown.

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

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

360° views of the city plus five floors of optical illusions and hands-on science.