This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

When flour explodes, it's not a pretty sight.

The only arched bridge made of stone on the entire Mississippi River.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

This kitsch eatery is chock-a-block with bric-a-brac.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

The smallest post office in the United States is no bigger than a broom closet.

An homage to everyone's favorite prehistoric cartoon family.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

The unique collection includes bronze cast handprints of some of America's most famous astronauts.

A building so large that it has its own weather.

This abandoned NASA launch site is now a memorial to a trio of astronauts who were killed there.

Over 120,000 curious objects that have shaped our modern world.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

Electrical pylon in the shape of Disney's beloved mouse.

Former wax museum from the 1960s, home to many wax U.S. Presidents and the famous White House miniature.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

Open day and night, a church with three pews and Bibles.