Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Walk through the history of American pop culture.

A museum dedicated to exhibiting remarkable outsider art.

A curiosity-seeker's paradise set inside a three-story historic school house.

Three courses accompanied by Christian rock.

Prehistoric animals decorate this popular outdoor park.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

Here be dragons.

This impressive scene portrays the elusive forest giraffe of Central Africa.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

New York City's only radical feminist independent bookstore.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

The failure of one component toppled this entire bridge during rush hour.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

An important Mayan religious and trading center dating back to 200 BC.

This taxidermy scene brings the struggle for survival in the Indian jungle to a quiet corner of a Manhattan museum.

This poignant display is now a memorial to these regionally extinct species.

Small and slightly hidden, the American Writers Museum is preserving the legacy of America's finest authors.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

This enormous banquet-themed artwork honors over 1,000 notable women throughout history.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.