This steam locomotive served as both an interesting static display and unique playground equipment since 1959.

A permanent outdoor art installation made up of more than 100 mushroom-shaped lights.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

A beautiful oddities shop crammed with strange and morbid curiosities.

Pittsburgh's literal underground railroad.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

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.

The residents of the Neighborhood of Make-Believe live without much fanfare within the Pittsburgh Children's Museum.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

A beautiful final resting place for some of the noteworthy deceased.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

A wall of chewing gum moonlights as collective art.

Deep into the lower floors of Pike Place, find a date with fowl fate.

One of the few Glatt kosher delis in the United States is a cornerstone of its Hasidic neighborhood.

During the American Revolutionary War, iron excavated from this mine was used to make swords, cannons, and more.

The ruins of this once-grand mansion are linked to one of the country’s most popular clothing brands.

Discovered by a soldier during the Revolutionary War, these springs helped create an iconic South Carolina ginger ale.

A Victorian cemetery in the heart of Brooklyn remains a popular mecca of morbid curiosity.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.