There aren't too many operational funiculars around, but Pittsburgh has two!

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

A beautiful oddities shop crammed with strange and morbid curiosities.

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

Maine's oldest diner also happens to win acclaim for its elevated comfort food.

The largest tidal whirlpool in the Western Hemisphere.

This unusual lava tube spouts seawater during high surf.

This blowhole is supposedly caused by a trapped monster.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

This black shoreline is made up of exploded lava particles.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A beautiful geyser under environmental threat.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A huge musical instrument played by the ocean.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.

Walk through the history of American pop culture.

The site where Poe "in great distress, and ... in need of immediate assistance" likely died.

The trials and tribulations of marking Poe's grave.

A monument celebrating the idea of reaching inaccessible places.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.