Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

This 28-foot-tall milk can contains one of the most whimsical ice cream parlors in town.

A unique auditory experience right on the sidewalk.

This sidewalk tribute honors Colorado's great culinary creation.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A pair of gargoyles peer into unsuspecting passengers at Denver’s conspiracy-packed airport.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

The larger of two volcanic peaks rising out of the crystalline waters of the Caribbean.

A remnant of the original World Trade Center complex continues to serve as a commuter gateway.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

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

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

Unrepaired walls from a 1920 anarchist bomb attack.

A Manhattan tombstone honors a popular 19th-century heroine, now long forgotten.

Wooden pavers represent a 17th-century barrier that gave Wall Street its name.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

Tucked into Pittsburgh’s North Side, the Mattress Factory is a labyrinth of permanent, room-sized installations where artists transform entire spaces into mind-bending, immersive worlds.

This riverside restaurant delivers elegant dining in a historic 1901 train depot. 

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

The 570-ton boulder that gave a New Jersey town its name.