A view-altering observatory at the University of Texas.

Free public park and gardens filled with peacocks and peahens.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

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

An abandoned, decaying sculpture garden built by an eccentric physician in the 1920s now looks more like a forgotten cemetery.

A 131-year-old wunderkammer of Texas history.

Three hundred years of preserved Spanish colonial history in San Antonio.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

The summer home of the largest colony of bats in the world.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

Why walk on this historical site when you can zoom down instead?

Bigfoot prints, Feejee mermaids, and haunted dolls on display in a tiny North Carolina town.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

A scattered trail of street art adds a pop of color to the city's stark structures.

This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

Over 75 historically themed murals grace the walls of a small Washington city.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

Could it have picked a better place to land?