Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

The god of wine stares out at passersby on this busy Pittsburgh thoroughfare.

The souvenir got the company’s founder out of a pretty pickle at the World’s Fair.

Hundreds of protractors affixed to surfaces all over the city.

A giant ball made from pieces of an old Jeep.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A common entry point to the Griffith Observatory trail holds its own wonders.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Quite simply the largest tree in the world (by volume).

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This conservation area is also home to many of the region's desert tortoises.

The red brick house where the father of rock 'n' roll wrote some of his classic hits.

Go inside to really appreciate this 500-year-old technological masterpiece.

An ancient octagonal weather station named for the eight Greek gods of wind.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Millions of dollars worth of sculpture decorate this Iowa city center.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.