The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Grandpa Rainbow felt the neighborhood needed some color, so he picked up a paintbrush and went to work.

This dragon-shaped sports arena is the world’s largest solar-powered stadium.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The restored and active Victorian-era final resting place of San Francisco.

A hidden subterranean installation offers a view of the sky.

A bronze monument to Cleveland's favorite, fastest son.

Hidden inside one of the world's most well-visited zoos is a secret plaque promising eternal life.

A collection of fanzines, recordings, and documents detailing the rise and influence of the feminist punk movement.

A quiet and contemplative oasis in the middle of New York's bustle and riot.

Weighing nearly 7 tons, this massive sculpture was carved out of 500-year-old wood and decorated with thousands of jewels.

This unattributed sculpture in Amsterdam is hiding in plain sight.

The attic of a four-century-old canal house hides a clandestine church.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

A relic of Victorian grandeur hides beneath a busy South London road.

Abstract dinosaur models in London.

The remains of Crystal Palace Great Exhibition of 1851.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A controversial magical figure is hidden within a diorama of the city.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.

The oldest living organism in New York City. Maybe.

Take in a rare, face-to-face glimpse of Lady Liberty at this tucked away Red Hook park.