Red frames showcase remnants of one of New York's original subway stations.

This abandoned ironworks was once the most important military supplier in America.

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.

A once grand hotel is being retaken by the wilderness it once capitalized on.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

To honor a beloved Austin radio DJ a neighborhood bridge has been covered in a loving mosaic.

Unusual house, in an unusual neighborhood, home to some very unusual peanuts.

Roadside Americana, fairy tale characters, and Austin quirkiness come together at this magical course in the heart of Texas' capital city.

This failed condo development was reborn as a street art hub.

This massive oak tree has ties to the first native tribes of the region and the founders of Texas.

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

Over two centuries old and counting, Madrid's massive botanical garden contains one of Europe's only desert environments.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A small island hides in plain sight on Austin's Lady Bird Lake.

A free, canine-friendly alternative watering hole near the more famous Barton Springs.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.

This unassuming North Austin neighborhood was built to test the novel idea of home air conditioning.

Austin’s local mountain isn’t really a mountain at all.

Free public park and gardens filled with peacocks and peahens.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The remains of this misplaced church were moved here stone by stone.

Commonly acknowledged as the only public monument to the Devil himself.

A lush indoor jungle fills this bustling Madrid transportation hub.