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

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

This centerpiece of the Hollywood & Highland shopping center is a recreation of a long-lost movie set.

Giant origami crease patterns engraved in Santa Monica intersections may even be visible from space.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

The dramatic upward-curving roof is one of the most iconic examples of Googie architecture that still stands today.

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

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

A spectacular tribute to statesman and philanthropist Andrew Mellon.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

Ride the subways of yesteryear.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

An artist's cute bronze subway sculptures belie his violent artistic past.

The only subway station in the city that still makes use of gap fillers.

There’s a hidden military meme engraved on the World War II Memorial.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

Surrounded by a verdant garden and a backdrop of ivy, a monument to beloved poet Khalil Gibran stands outside of the Lebanese embassy.

A historic arena where the Beatles played their first concert in the U.S.

At 207 feet, one of the world's longest continuous escalators.

The national park was once a plantation estate.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

Step into a pastel time capsule where candy is truly dandy.

The hallowed remains of a 900-year old Ancestral Pueblo great house.