An indoor botanical garden for tropical plants looks like a giant cylinder lying on its side.

An old spiral fire escape dangles above a public courtyard in Midtown Oklahoma City.

A mythical chimera first sculpted in 1936 as a mix of the main animals of Texas livestock.

A Texas-sized secondhand bookstore features 54,000 square feet of books, music, and media.

The largest land animal skull ever discovered.

Once the smallest park in the national system.

Fall through a crack in the seams of reality at this immersive art installation.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

This private mansion turned Catholic bishop’s home is an iconic Galveston building.

The historic tall ship is one of just three of its kind still sailing open waters today.

A decaying concrete oil tanker served as a disposal location for bootleg hootch.

This memorial and the seawall that it stands near are powerful symbols of the island’s resilience.

This tiny, hurricane-resistant house in Galveston is one of the city's most notable architectural oddities.

At the top of the hour, this steam-powered clock's eight brass whistles play "Back Home Again in Indiana."

This Indianapolis landmark offers a secret panoramic view of the city. 

Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

The home of a former Minor League baseball team that beat Joe DiMaggio's New York Yankees in 1949.

An entire subdivision was accidentally built on a flood plain, resulting in its eventual demolition—but the streets are still there.

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

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

After 97 years of constant vigilance from the dome of the Texas State Capitol, the original Goddess of Liberty retired to a life of climate-controlled leisure.

Beauty and history abound in this remote West Texas canyon.

This abandoned building made of petrified wood was once a hotspot for buying moonshine.