Those belting out show tunes might not realize this piano bar marks the site where Thomas Paine died in 1809.

Home to a dizzying array of letterpress blocks with a rich history.

A clock set into the concrete outside a Manhattan jeweler has been telling time underfoot for over a century.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A mysteriously abandoned campsite in San Angelo State Park.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

Inside this mountain lies several kilometers of breathtaking caves.

The 19th-century ruins hide deep in an overgrown forest.

A mysterious drive-in nestled in the forest that leaves little to the imagination.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

One of the last Art Deco gas station still standing in Dallas.

The bridge continues the legacy of President Franklin D. Roosevelt's New Deal policy.

It specializes in outsider art and artifacts of secret societies.

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

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

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

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

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

Fantastic collection celebrating the final send-off.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

Artist James Turrell's ode to dawn and dusk on the campus of Rice University.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

A medieval castle in the middle of rural Texas.