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

Mysterious stone tower featured in many alternative histories of the New World.

Macabre astrological automaton clock dating to the late 1400s.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

Located on 420 acres in the high desert, this spiritual center is dedicated to the "science of the future."

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

A grotto-like lodge decorated with gilded mosaics, rocks and a noisy waterfall was the setting for the most sumptuous pleasure house of 1900s Europe.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

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

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The celebrated eyesore created by starry-eyed sweethearts.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Tucked in the back of this amazing antique store is an important piece of medical history.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

Constructed in the 1920s, this former pencil factory is now an office building.

Ornate "Renaissance Revival" style building.

Once a ferry dock, radio transmitter, and now a new Greenpoint park.

Queen Anne style apartment house built in 1886.

The site of the deadly Triangle Shirtwaist Factory Fire.

Phil Mortillaro uses keys to bring art back to the Village.

The most confusing clock in New York.