Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A model of a dinosaur that was named for Andrew Carnegie stands outside the museum that also bears his name.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

This plaque marks a place where one of Hollywood’s most famous dancers got his start.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

A giant ball made from pieces of an old Jeep.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

This secluded date farm can be reached only by following a bumpy, single-lane desert road.

Home of modern dancer famously strangled by her own scarf.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

This painted marvel is San Francisco's 400-foot ode to urban biking.

The medieval woodcut-style artwork chronicles life in medieval London.

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

The narrow passages will challenge even the bravest driver.

Get up close with some alligators at this roadside farm attraction.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

A beautiful photography exhibition space housed in a former church.

This old-world mansion with lush gardens is a gem in the heart of Silicon Valley.

An old limestone mine transformed into a beautiful and unusual sculpture museum.

New York City's only radical feminist independent bookstore.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

Plans for this local observation tower were debated for so long, the allocated funds lost value and the design had to be changed.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.