One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Flashy signs from Las Vegas’s past find their final resting place at this unusual graveyard.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This cave holds a surprisingly colorful variety of geological oddities.

This national park dedicated to the tallgrass prairie ecosystem still displays its military past.

A historic and oft-filmed prison stands in a Chicago suburb.

The final resting place of the world's first nuclear reactor.

What was once the second largest steel mill in the US is now a sprawling complex of modern ruins.

This once prosperous community was home to European settlers and the Ojibwe.

This sprawling building built in 1890 was one of Minnesota’s earliest and largest mental health facilities.

A giant granite cross remembers missionary Father Frederic Baraga, and his safe passage across an angry Lake Superior.

When waves crash onto this section of beach, the rocks sing a song.

This small town bank is very aware of its name thank you very much.

The first rural cemetery west of the Mississippi is home to the elaborate tombs of St. Louis' local beer barons.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

European castle ruins in an American state park are actually the product of death and grief.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

An architect's childhood fantasy treehouse made real.

A beautiful geyser under environmental threat.

This demon atop the Notre-Dame de Paris looks utterly bored.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The first green space constructed on an elevated viaduct.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.