Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

This Tennessee museum is dedicated to a tragic railroad hero who inspired the famous ballad that bears his name.

Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

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

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.

The only surviving sidewalk clock in Brooklyn.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

Marie told fortunes from her small stand on the Boardwalk for decades, including to a young Bruce Springsteen who would busk outside her booth.

This monument pays tribute to the musicians responsible for creating the Sound Of Asbury Park.

Memorial to the 137 lives lost on a ship fire, the whole hulk of which washed up on the Asbury Park shore.

One man's homage to the orange as realized through a long-term folk art labor of love.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Named after a militant urban guerilla, this famous former squat is a graffiti-covered stronghold of leftist culture.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

This sprawling Jewish cemetery is one of the largest in Europe.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.