The conquistador's former fortress is the oldest preserved colonial building in the Americas.

This larger-than-life golden statue pays tribute to this town's old and new trades.

The population of Southeast Asian primates was introduced to Mexico in the 1970s.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

Elevated freight railway turned wildly successful urban park.

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

The most confusing clock in New York.

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

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Lie in a hammock where George Washington stood.

For more than 25 years, this Philadelphia store has been offering a wide selection of Victorian oddities and antiques.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

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

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

This old-fashioned candy shop, ice cream parlor, and diner served as the setting for one of TV's most controversial series finales.

This simple frog painting created by musician Daniel Johnston embodies the spirit of Austin.

One part antique store, one part curiosities hodge-podge.

A grove of colossal man-made flowers built to collect the sun's rays.

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

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

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.