This rare volcano spews the strangest and (literally) coolest lava in the world.

This wildlife trust is dedicated to orphaned elephant rescue and conservation.

This defunct, fortress-like prison has been the setting for several movies.

Washington's iconic carousel has a nice piece of Civil Rights history.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This replica of the Greek structure is in the heart of Nashville.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This Arkansas town is known for its gangster history, its healing waters, and now its brews.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

You have to love a museum with a truly dedicated focus. A focus on Superman, for example.

Time travel with sweets across history at this research-based candy store.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Public opinion is still divided on this enormous sculpture in front of Baltimore's Penn Station.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

Meet some of the most prominent figures in Black history through life-sized wax models.

A layered tribute to the work of mosaicist Isaiah Zagar.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

Elevated freight railway turned wildly successful urban park.