See Hoover Dam and the bypass bridge from a perspective usually off-limits to the public, and float the upper part of the Black Canyon National Water Trail.

A non-native grove of 241 redwoods in Southern California.

An abandoned asylum incorporated into a college campus.

Rare recess caves fill this unbelievably beautiful Ohio park.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

One of the world's largest hedge letterings spells out this arboretum's name over 2,040 feet.

The nearly 200-year-old building displays a perplexing grammatical error.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.